510 research outputs found

    A 1.2 V and 69 mW 60 GHz Multi-channel Tunable CMOS Receiver Design

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    A multi-channel receiver operating between 56 GHz and 70 GHz for coverage of different 60 GHz bands worldwide is implemented with a 90 nm Complementary Metal-Oxide Semiconductor (CMOS) process. The receiver containing an LNA, a frequency down-conversion mixer and a variable gain amplifier incorporating a band-pass filter is designed and implemented. This integrated receiver is tested at four channels of centre frequencies 58.3 GHz, 60.5 GHz, 62.6 GHz and 64.8 GHz, employing a frequency plan of an 8 GHz-intermediate frequency (IF). The achieved conversion gain by coarse gain control is between 4.8 dB–54.9 dB. The millimeter-wave receiver circuit is biased with a 1.2V supply voltage. The measured power consumption is 69 mW

    The politics of Istanbul's Ottoman heritage in the era of globalism

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    History is not merely about events which remind of the past, it is also about political struggles in the present. This is particularly so in contemporary cultural markets where 'history' is increasingly produced and disseminated in a host of commercialized forms. This paper focuses on competing 'historical' narratives which circulate across Istanbul's cultural markets, as they mediate between between the past and the ethnographic present of the city. These are 'political' narratives in the sense that they mobilize alternative versions of Istanbul's Ottoman past, from different class locations and address different constituencies

    From the morality of living to the morality of sying: hunger strikes in Turkish prisons

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    Political hunger strikes have been part of the debates on human rights in many countries around the world. This paper explores the preconditions for and motives behind hunger strikes in Turkey by conceiving the hunger strikers as a part of citizenship politics through which strikers not only express their views against certain common issues, but also declare total opposition to an unjust condition within their political community. The paper focuses on the question of why some such “citizens” choose to participate in hunger strikes, which appears as an individual commitment to achieve a certain common objective. In doing so, the meaning of the experiences of hunger strikers and their universal right to live are elaborated in relation to their political and moral views. Hunger strikes are suggested to be seen as voluntary fasting, undertaken as a means of civil disobedience against an injustice within the context of citizenship. As examples of non-violent political acts, hunger strikes are not only part of citizenship politics but also expressions of commitment to achieving one’s goals through non-aggressive means for the common good of all citizens. Moreover, they can also be considered examples of martyrdom/heroism because hunger strikers altruistically risk their life for a public cause. As a particular altruistic act, hunger strikes can also be viewed as an effective form of communication directed toward fellow citizens. Moreover, they are expressions of self-determination for having control over and for one’s own life conditions. Finally, hunger strikes can be conceptualized as a struggle for transforming the configuration of structures and practices of citizenship about which one is passionately concerned. In this context, hunger strikes seem to be struggles for recognition in a relationship between two subjects, in which one subordinates the other

    The Psychometric Properties of the Physical Education Lesson Attitude Scale for Preservice Classroom Teachers

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    The purpose of this study was to examine the psychometric properties of the Physical Education Attitude Scale for Preservice Classroom Teachers (PEAS-PCT). The study was conducted on 561 Turkish preservice classroom teachers at the end of the 2011-2012 Fall Semester. Exploratory and confirmatory factor analyses were conducted to ascertain the validity of the scale. For the reliability of the scale Cronbach Alpha reliability, Spearman Brown split-half test and item-total test correlations were calculated. Reexamination of the scale led to a new scale structure comprised of a single factor with ten items. The altered version of the scale proved psychometrically stronger. Based on the results of the study, it can be suggested that the PEAS-PCT is a valid and reliable scale

    Representing and consuming "the East" in cultural markets

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    "The East" is an exceptional territory identified with Kurdish ethnicity within the geographical boundaries of the Turkish nation. This paper focuses on a critical historical moment, circa 2000-2004, when the promise of peace in this region was coupled with the explosive growth of urban consumer markets, to bring into public circulation a host of commercialized images of "the East" and "Eastern people." It examines how "the East" became codified in popular television melodrama. It also tracks how "Eastern tourism" became incorporated into middle-class leisure practices. By juxtaposing television narratives and tourist narratives, it argues that the commodification in cultural markets both affirms its "exceptionalism" and challenges its taken-for-granted parameters

    An analysis of human causal factors in Unmanned Aerial Vehicle (UAV) accidents

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    MBA Professional ReportHuman error has been identified as the major contributor in many severe aviation mishaps, even for accidents involving Unmanned Aircraft (UA) systems. The Department of Defense (DOD) has used the Human Factors Analysis and Classification System (HFACS) taxonomy successfully for ten years to discover the human error in UA mishaps. It is important not to ignore the indisputable human presence in UA and the possible human-related causal factors in UA mishaps so we might be better able to reduce and prevent possible incidents. HFACS with its four main and 19 subcategories is a useful framework for identifying which factors have arisen historically, and which of them should have priority. The results of this study reveals that among 287 causal factors attributed to 68 accidents, 65 percent of the factors were associated with humans. Moreover, this study also discloses that the rater who categorizes the factors can differently observe, understand, and interpret the findings of mishap investigation; thus, human error may even impact the categorization phase due to the rater’s perception. The research concluded that even though HFACS carried out its functionality well, further study is needed to conduct intense statistical analysis with unlimited data and to validate HFACS with more case studies and various raters.http://archive.org/details/annalysisofhumca1094544637Captain, Turkish Air Force1st Lieutenant, Turkish ArmyApproved for public release; distribution is unlimited

    Millimeter-Wave CMOS Impulse Radio

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    Examination of Parent's Views about their 60-77 Months Old Children's Maturity of Primary School

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    AbstractThe concept of school readiness typically refers to the child's attainment of a certain set of emotional, behavioral and cognitive skills needed to learn, work and function successfully in school. Unfortunately, the common philosophy of “ready for school” can be understood by parents and caregivers as children's readiness for the expectations of school (Marquez, 2006). In a more constructive way school readiness concept has many aspects, for example; while attending to a school, children must cope with many new demands; they must meet new academic challenges, learn new school and teacher expectations, and gain acceptance into a new peer group. In the entrance to a school, chronological age is an important factor, but also factors like; gender, previous experience, social skills, intellegence, general health and family composition, well- being, and socioeconomic status play important role. In Turkey obligation to attend primary school age was 6-7 years old. In 2012-2013 educational year, Turkish Ministry of Education changed the compulsory education period to twelve years and the attendence of compulsory education period was changed to 5-6 years old. The aim of the study is to examine parent's views about their children's readiness and maturity attending to primary school. 60-80 months old of children attending four different primary schools took part in the study. An inquiry consisting of questions about children's basic developmental areas, academic skills and school maturity was prepared for the study. The inquiry was applied to voluntary parents. The view of parents were examined according to children's age. No significant differences were found between older and younger children's parents views
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