2,446 research outputs found

    Bakteri Tanah Sampah Pendegradasi Plastik dalam Kolom Winogradsky

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    Penggunaan plastik berupa kantong kresek hasil daur ulang dengan berbagai warna sangat diminati oleh masyarakat. Sifat plastik yang tidak mudah terdegradasi di alam mengakibatkan masalah lingkungan. Penelitian ini dilakukan untuk mengisolasi dan mengkarakterisasi bakteri tanah sampah yang mampu mendegradasi plastik secara biokimia. Parameter biodegradasi plastik yang diukur adalah prosentase kehilangan berat kering, pengukuran densitas sel biofilm, densitas sel kolom air dan pH tiap bulan selama 4 bulan masa inkubasi. Dari penelitian didapatkan persentase kehilangan berat kerig plastk hitam lebih tinggi daripada plastik putih Bening. Hasil yang diperoleh menunjukkan bahwa isolat bakteri tanah sampah pendegradasi plastik yaitu Gram positif basil (PPs 2, PPs 7, PPs 9, dan PPs 11) dan Gram negatif basil (PPs 1, PPs 4, PPs 5, PPs 6, PPs 8, PPs 10, PPs 12 dan PPs 13 )dan hanya PPs 3 termasuk Gram negatif kokus

    Role of angiotensin in the vascular response to chronic renal tubular obstruction

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    This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department ([email protected])

    Selective self-categorization: Meaningful categorization and the in-group persuasion effect

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    Research stemming from self-categorization theory (Turner et al., 1987) has demonstrated that individuals are typically more persuaded by messages from their in-group than by messages from the out-group. The present research investigated the role of issue relevance in moderating these effects. In particular, it was predicted that in-groups would only be more persuasive when the dimension on which group membership was defined was meaningful or relevant to the attitude issue. In two studies, participants were presented with persuasive arguments from either an in-group source or an out-group source, where the basis of the in-group/out-group distinction was either relevant or irrelevant to the attitude issue. Participants' attitudes toward the issue were then measured. The results supported the predictions: Participants were more persuaded by in-group sources than out-group sources when the basis for defining the group was relevant to the attitude issue. However, when the defining characteristic of the group was irrelevant to the attitude issue, participants were equally persuaded by in-group and out-group sources. These results support the hypothesis that the fit between group membership and domain is an important moderator of self-categorization effects

    Issue evolution and the remaking of partisan alignments in a European multiparty system: elite and mass repositioning in Denmark 1968-2011

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    Issue evolution is a well-established theoretical perspective in the analysis of long-term party competition and partisanship in the US. However, this perspective has rarely been used to analyze political elite effects on partisan polarization in European multiparty systems. Consequently, I apply the issue evolution perspective to polarization in a European multiparty system. I find an emergence of cultural issues in Denmark, where mass level polarization on cultural issues followed elite level polarization. Unlike two-party systems, niche parties drive issue evolution on the elite level, which is then followed by niche partisan polarization and, finally, mainstream party adaption. The findings illustrate the mechanisms of issue evolution in a European-style multiparty system and the role of niche parties

    A Bifactor Model of the Polish Version of the Hare Self-Report Psychopathy Scale

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    The 64-item Hare Self-Report Psychopathy Scale was translated into Polish with the aim to test construct validity and dimensionality, incremental validity, and composite reliability of the measure in a sample of working adults (N = 319). Confirmatory factor analyses revealed that the best fitting model was the bifactor conceptualization containing six latent factors; two general factors of psychopathy and four grouping factors represented by interpersonal, affective, antisocial, and lifestyle latent variables (compared to a 2-factor, 4-factor, and 4-factor with 2 hierarchical factors). The scores of the Polish version of Hare SRP evidenced good composite reliability and incremental validity in terms of predicting scores on aggression scale. Implications for theory and future research are discussed

    The Frost Multidimensional Perfectionism Scale revisited: More perfect with four (instead of six) dimensions

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    The Frost Multidimensional Perfectionism Scale (FMPS; Frost, Marten, Lahart & Rosenblate, 1990) provides six subscales for a multidimensional assessment of perfectionism: Concern over Mistakes (CM), Personal Standards (PS), Parental Expectations (PE), Parental Criticism (PC), Doubts about actions (D), and Organization (O). Despite its increasing popularity in personality and clinical research, the FMPS has also drawn some criticism for its factorial instability across samples. The present article argues that this instability may be due to an overextraction of components. Whereas all previous analyses presented six-factor solutions for the FMPS items, a reanalysis with Horn's parallel analysis suggested only four or five underlying factors. To investigate the nature of these factors, item responses from N = 243 participants were subjected to principal component analysis. Again, parallel analysis retained only four components. Varimax rotation replicated PS and O as separate factors, whereas combining CM with D as well as PE with PC. Consequently, the present article suggests a reduction to four (instead of six) FMPS subscales. Differential correlations with anxiety, depression, parental representations and action tendencies underscore the advantage of this solution

    Study of Digital Competence of the Students and Teachers in Ukraine

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    Professional fulfillment of the personality at the conditions of the digital economy requires the high level of digital competency. One of the ways to develop these competencies is education. However, to provide the implementation of digital education at a high level, the digital competency of the teachers and students is a must. This paper presents explanations on the level determination of the digital competencies for teachers and students in Ukraine according to the DigComp recommendations. We tried to identify the main factors that reflect the degree of readiness teachers and students for digital education based on their self-evaluation. We also attempted to estimate the level of digital competencies based on the analysis of Case-Studies execution results. The complex analysis let us assess the connection between respondents’ self-evaluation and their real competencies. Here we provide a methodology and a model of level competencies determination by means of a survey, expert case rating and the results of the statistical analysis. On the basis of the obtained results, this paper suggests further research prospects and recommendations on the digital competency development in educational institutions in Ukraine

    The Moving Centre: Preferences for Government Activity in Britain, 1950–2005

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    The political ‘centre’ is often discussed in debates about public policy and analyses of party strategies and election outcomes. Yet, to date, there has been little effort to estimate the political centre outside the United States. This article outlines a method of estimating the political centre using public opinion data collected for the period between 1950 and 2005. It is demonstrated that it is possible to measure the centre in Britain, that it moves over time, that it shifts in response to government activity and, furthermore, that it has an observable association with general election outcomes.</jats:p
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