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Sajjad Rahmani Dabbagh Fazle Rabbi Zafer Doan Ali Kemal Yetisen Savas Tasoglu 《Biomicrofluidics》2020,14(6)
High-throughput, cost-effective, and portable devices can enhance the performance of point-of-care tests. Such devices are able to acquire images from samples at a high rate in combination with microfluidic chips in point-of-care applications. However, interpreting and analyzing the large amount of acquired data is not only a labor-intensive and time-consuming process, but also prone to the bias of the user and low accuracy. Integrating machine learning (ML) with the image acquisition capability of smartphones as well as increasing computing power could address the need for high-throughput, accurate, and automatized detection, data processing, and quantification of results. Here, ML-supported diagnostic technologies are presented. These technologies include quantification of colorimetric tests, classification of biological samples (cells and sperms), soft sensors, assay type detection, and recognition of the fluid properties. Challenges regarding the implementation of ML methods, including the required number of data points, image acquisition prerequisites, and execution of data-limited experiments are also discussed. 相似文献
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Zafer Kuş Kadir Karatekin Durdane Öztürk Özlem Elvan 《Educational Media International》2016,53(2):118-138
The main purpose of this study is to analyze news stories regarding children in the national print media in the last five years using top eight newspapers in terms of circulation and evaluate these news stories based on the Convention on the Rights of the Child, which was issued by the UN and signed by Turkey. The research was undertaken as a case study. The study data were collected from top eight newspapers in terms of circulation between 2010 and 2014 in order to reveal when and how newspapers at national level represent children and the scientific content of impressions in the national media. Results show that children appear in the national media in mostly negative cases. In conclusion, it was observed in this study, children’s rights to life, development, protection, and participation were violated at both national and international levels. In this sense, news reflects the truth about “children’s rights violations”. However, the way that children appear in news and reflection in media constitute a secondary children’s rights violation. 相似文献
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Metal substitution reactions are simple redox reactions. These reactions demonstrate the relative activity and the electrochemical series of metals. In particular, the purpose of this study is to help students comprehend the displacement reaction among, Mg metal and solutions containing Cu+2, Ni+2, Pb+2, Cd+2, Co+2. This study is an important experiment towards understanding reaction kinetics. 相似文献
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Zafer Kuş 《Educational Research for Policy and Practice》2014,13(2):115-128
This research aims to investigate democratic environments offered to children in Turkey at school, in the home, and in society. A mixed method is a general type of research where qualitative and quantitative methods are used together. The researcher first collects quantitative and then the qualitative data. The study group in the research consisted of children in Kirsehir, a small city near the capital Ankara, in central Turkey. Democratic Environments scale and interview forms were used in the research. To analyze the obtained data, arithmetic averages, standard deviations, and percentages were calculated and multivariate analyses of variance conducted. The data obtained during interviews were analyzed through content analysis. Results show that even though Turkey accepts the Convention on the Rights of the Child, some problems remain associated with the democratic environment offered to children at school, at home, and in society. 相似文献
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Zafer Ibrahimoğlu 《The Journal of educational research》2019,112(1):131-139
The primary aim of this study was to identify middle school students' conceptual perceptions of the social studies course, and their usage and awareness of the course outcomes in daily life. Qualitative research methods and techniques were employed in the study. The participants were 34 middle school seventh-grade students from a state middle school in Istanbul, Turkey. Letter writing was used as the data-gathering tool, and the data were analyzed by means of the content analysis technique. The findings showed that the participants perceived social studies as a course consisting of social-humanistic sciences with an emphasis on history and communication in accordance with the theoretical structure of the course, and employed their outcomes from this course that they can partly use in daily life. 相似文献
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Muammer ?alik Ali Kolomu? Zafer Karag?lge 《Journal of Science Education and Technology》2010,19(5):422-433
This paper reports on an investigation of the effect of conceptual change pedagogy on students’ conceptions of ‘rate of reaction’
concepts. The study used a pre-test/post-test non-equivalent comparison group design approach and the sample consisted of
72 Turkish grade-11 students (aged 16–18 years) selected from two intact classrooms. The ‘Rate of Reaction’ Concept Test comprising
9 lead and 10 sub-questions (total 19 items) was employed. The results suggest that the teaching intervention helped the students
to overcome their alternative conceptions and to store their newly structured knowledge in their long-term memories. It is
suggested that combining different conceptual change methods such conceptual change text/refutation text, argumentation with
the intervention used here may be more effective in reducing student alternative conceptions. 相似文献
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This article presents a novel tuning design of Proportional-Integral-Derivative (PID) controller in the Automatic Voltage Regulator (AVR) system by using Cuckoo Search (CS) algorithm with a new time domain performance criterion. This performance criterion was chosen to minimize the maximum overshoot, rise time, settling time and steady state error of the terminal voltage. In order to compare CS with other evolutionary algorithms, the proposed objective function was used in Particle Swarm Optimization (PSO) and Artificial Bee Colony (ABC) algorithms for PID design of the AVR system. The performance of the proposed CS based PID controller was compared to the PID controllers tuned by the different evolutionary algorithms using various objective functions proposed in the literature. Dynamic response and a frequency response of the proposed CS based PID controller were examined in detail. Moreover, the disturbance rejection and robustness performance of the tuned controller against parametric uncertainties were obtained, separately. Energy consumptions of the proposed PID controller and the PID controllers tuned by the PSO and ABC algorithms were analyzed thoroughly. Extensive simulation results demonstrate that the CS based PID controller has better control performance in comparison with other PID controllers tuned by the PSO and ABC algorithms. Furthermore, the proposed objective function remarkably improves the PID tuning optimization technique. 相似文献
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Mechanical and physical properties, such as tensile strength, elongation at break, modulus of elasticity, Shore D hardness,
melt flow rate (MFR), and electrical and thermal conductivities of composites with high density polyethylene matrix reinforced
with Al powders were investigated experimentally. Measurements of the mechanical and physical properties were performed up
to a reinforcing component concentration of 30% volume Al powder and compared with mathematical models from the literature.
The obtained results have shown that experimental data were in good agreement with theoretical data. The ultimate tensile
strength (UTS) and elongation at break decreased with increasing Al powder content, which was attributed to the introduction
of discontinuities in the polymer structure, and modulus of elasticity increased with increasing Al content. The composite
preparation conditions allowed the formation of a random distribution of metallic particles in the polymer matrix volume for
system high density polyethylene-Al (HDPE-Al). There was a cluster formation of Al particles at higher Al contents in the
polymer matrix. Electrical and thermal conductivity values of HDPE-Al composites were higher than pure HDPE values. 相似文献
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The primary objective of this study was to investigate whether a difference in teachers' classroom management styles exists based on years of teaching experience. Data were collected from 282 elementary school teachers employed by 11 elementary schools in Turkey. The Attitudes and Beliefs on Classroom Control Inventory was used to collect the data. Research findings were analyzed to help undergraduate programs and educators revise their program or practicum experiences to enhance preservice teachers' conceptual understanding of classroom management for successful teaching. 相似文献
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