Electronically Tunable Current-Mode Third-Order Square-Root-Domain Filter Design

In this study, electronically-tunable, current-mode, square-root-domain, third-order low-pass filter is proposed. The study is carried out with three circuit designs. First circuit is third-order low-pass Butterworth filter, second circuit is third-order low-pass Chebyshev filter and the last circuit is third-order low-pass elliptic filter. All the input and output values of the filter circuit are current. Only grounded capacitors and MOSFETs are required in order to realize the filter circuit. Additionally, natural frequency f0 of the current-mode filter can be adjusted electronically using outer current sources. To validate the theory and to demonstrate the performance of third-order filter, frequency and time domain simulations of PSPICE program are used. To that end, TSMC 0.35μm Level 3 CMOS process parameters are utilized to realize the simulations of the filter. © 2018 World Scientific Publishing Company

Inverse nodal problem for Dirac operator with integral type nonlocal boundary conditions

In this paper, Dirac operator with some integral type nonlocal boundary conditions is studied. We show that the coefficients of the problem can be uniquely determined by a dense set of nodal points. Moreover, we give an algorithm for the reconstruction of some coefficients of the operator

Social Studies in Out-of-Class Learning Environments: A study on Teacher Candidates’ Views and Awareness

This research aimed to investigate the awareness of out-of-class learning environments that can be utilized in social studies courses among both social studies teacher candidates and primary school teacher candidates. Social studies, with its interdisciplinary nature, has the potential to provide a wide array of out-of-class learning opportunities, and we aimed to explore this aspect. In pursuit of this objective, we sought to evaluate the extent of teacher candidates’ familiarity with these learning environments and their ability to establish connections between these settings and the content of the social studies course. In our research we used the descriptive case study which is one of the types of qualitative research methods. In this context, we carried out the qualitative data collection process within the framework of the interview technique through a ‘semi-structured interview form’ for the participating teacher candidates. We analyzed all the collected data using descriptive analysis. As a result of our analyses, we found that teacher candidates from both programs who had taken this course were able to identify a wide range of out-of-class learning environments and that the most common examples they mentioned were ‘museums, libraries, schoolyard, canteens and historical sites/places, excursions and laboratories’. However, we found that both groups had relative difficulty in associating these learning environments with the social studies curriculum and content. When we assessed whether this finding indicated a difference in the extent of the teacher candidates’ own branches and the course hours they had taken, we found that the examples of association of the teacher candidates with less social studies field education were far behind the examples of the social studies teacher candidates. Another significant finding from the research is that the teacher candidates were more capable of offering robust examples of associations related to out-of-class in-school learning environments compared to those associated with out-of-school learning environments

The Problem of Divine Hiddenness in The Context of Schellenberg and Different Approaches

The problem of divine hiddenness discussed among both theist and non- theist circles. From an atheistic perspective the existence of people who are sincerely looking for God but cannot reach Him is a supportive point for atheism. On the other side, same problem supports agnosticism since there are equal evidence from both side for the existence of God from an agnostic perspective. The theists who are belonging to different religion have tried to find some solutions to this problem. For instance; there is a theistic understanding which claims hiddenness of God provides us freedom to believe and another one says it is the only way to have personal relationship with God. A different position brings solution from the Jewish idea that chosen people of God. In this article, I have evaluated those different approaches. In the first section, I have indicated that there is no agreement on the implication of divine hiddenness problem even amongst non-theistic positions by shortly introducing atheistic and agnostic approaches. In the second section, I dealt with theistic approaches and the problems that they produced while trying to provide a solution to the problem. After an inquiry on how we are supposed to understand hiddenness, I have tried to show the problem has nothing new since premises of the divine hiddenness problem are not verifiable by everyone. As a conclusion I have offered postponing the divine hiddenness problem and discussing existence of God on a rational ground by presenting a counterargument

E-Learning as a Teaching Strategy Actively Used in FATIH Project

The changes and innovations in information and communication technologies influence the economic and social lives of the societies to a great degree. The countries accordingly take new decisions to benefit effectively from these technologies. The new media system scrolling traditional educational paradigms has also required changes in educational systems. Thanks to the new media-equipped education system in which equality of facility and opportunity parallel to world standards is provided and technologic improvement is individualized, a new generation student profile will emerge who has global competitive skill and individual conscious and awareness. The new generation student profile has to carry the skills of problem solving, using the language eloquently, creativity, critical thinking, life-long learning, media, technology and information literacy, social responsibility and teamwork. Notebooks, projectors and internet infrastructure are aimed to provide for the six hundred thousand classes of all the schools in preschools, primary-elementary and high schools to ensure equality of opportunity, amend the technology in schools and make it possible to use more effective use of CT media in teaching-learning process, which will address more senses. The studies on the issue are still continuing. This study is based on qualitative research methods and techniques in which scanning model is used. The actual case has been presented by doing examinations on FATIH project, Turkish education system, teaching strategies used, e-learning and management information systems and a study is executed on teaching strategies of FATIH project in the light of this information

Economic and Fiscal Impacts of DFW International Airport's Disadvantaged, Minority- and Women-Owned Business Enterprise: Detailed Findings and Updates

This report, by the University of North Texas Center for Economic Development and Research, updates the 2004/2005 analyses of the regional economic activity generated by Disadvantaged, Minority- and Women-Owned Business Enterprise (DMWBE) contractors and vendors operating at Dallas/Fort Worth International Airport (DFW Airport)

Smartphone Perception and Experiences of Teacher Candidates During Covid 19 Process: What is My Smartphone for Me?

The purpose of this study is to reveal the experiences of the teacher candidates about their personal phones, their phone usage situations and their perceptions about their smartphones during the Covid-19 process. The mixed method procedure was followed in the study. In the quantitative dimension, the survey model was used in order to reveal the smartphone usage status of the teacher candidates, while in the qualitative dimension, the phenomenology model was used to determine their perceptions about the smartphone. The sample of the study consisted of 45 teacher candidates studying in the faculty of education at a state university located in Turkey's Aegean region during the 2020-2021 fall semester. The data of the study were collected by the researcher with a questionnaire form created by taking the literature review and expert opinion. The quantitative data collected within the scope of the research were subjected to statistical analysis. The metaphors collected in qualitative dimension were analyzed with content analysis. Research findings indicated that the teacher candidates were generally aware of the technical features of their personal phones. On the other hand, it has been determined that they are indecisive in controlling themselves about their phone usage, being dependent on their phones and being aware of their phone time. It has been observed that the teacher candidates produced metaphors for their smart phones that point to the themes of “addiction, functionality, correct use, having a happy time, socialization/communication and other.” It can be said that the research is important in terms of providing researchers and decision makers with new perspectives on the smartphone perception and experiences of teacher candidates in the Covid-19 process