1,721,078 research outputs found
Vasoactive intestinal peptide protects guinea-pig detrusor nerves from anoxia/glucopenia injury
No full textVasoactive intestinal peptide (VIP) was tested for its capability to protect the intrinsic nerves of guinea-pig urinary bladder from damage due to anoxia/glucopenia and reperfusion. Guinea-pig detrusor strips were mounted for tension recording in small organ baths and the nerves were subjected to electric field stimulation. VIP (0.3 microM) improved significantly the response of strips to electrical field stimulation either during anoxia/glucopenia or thereafter during reperfusion, as compared to untreated tissues. The antioxidant activity of VIP assessed as its capability to scavenge peroxyl radicals during linoleic acid oxidation corresponded to 6.42+/-0.13 pIC(50) M, i.e. close to the concentration proved to protect strips against the anoxic--glucopenic and reperfusion damage
Improving the Listening Ability of Students by Using English Songs. A thesis. Faculty of Languages and Literature. State University of Makassar
Get PDFABSTRACT
Kalfin Rombe Padati. 2011. Improving the Listening Ability of Students by Using
English Songs. A thesis. Faculty of Languages and Literature. State University of
Makassar. (supervised by Djamiah Husain and Amra Ariyani).
The objective of the research was to find out whether the use of English songs
improves the ability of students in listening or not. The writer applied preexperimental
method with one group pretest and posttest design. The subject of the
research was the first grade students of SMA Hasanuddin Gowa of academic year
2010-2011. The research used total sampling, consists of 43 students. The data were
collected through listening test (pretest and posttest). To find out whether the uses of
English songs improve the listening ability of senior high school students, the writer
uses t-test analysis. The result of the data analysis showed that there was a significant
difference between pretest and posttest. It was proven by the value of t-test (23.79)
which was greater than the t-table (2.021) with the level of significance (α) = 0.05
and degree of freedom (df) = 42. The mean score of the posttest (57.51) was greater
than the mean score of pretest (33.72). Based on the finding and discussion of the
study, the writer concludes that the use of English songs can improve listening
comprehension of the first grade of SMA Hasanuddin Gowa
Neuropeptides and urinary bladder ischemia-reperfusion injury
No full textUrinary bladder decompensation following partial bladder obstruction is directly related to decreased tissue
perfusion, resulting in periods of hypoxia and ischemia. Hence, it is important to look for substances which could
counteract against the ischemia/reperfusion- induced neuronal damage in detrusor muscle and in such a way to
ameliorate the functional disorders of urinary bladder. Many neuropeptides have been found to be synthesized, stored
and released in the lower urinary tract. Some of them were reported to reduce ischemia-reperfusion injury. The purpose
of this study was to examine the efficacy of vasoactive intestinal peptide (VIP), somatostatin and Sandostatin®
(Novartis) to counteract the damage suffered by neurons in urinary bladder exposed in vitro to experimentally induced
ischemia-reperfusion in guinea-pig. We found that VIP (0.3 μM), somatostatin (300 nM) and sandostatin (1 to 300 nM)
improved significantly the response to electrical field stimulation during reperfusion as compared to the control,
utreated tissues. The antioxidant activity of VIP, somatostatin and sandostatin, assessed as their capability to scavenge
peroxyl radicals during linoleic acid oxidation corresponded to 6.4 ± 0.1, 6.7 ± 0.3 and 7.0 ± 0.6, respectively. The
antioxidant activity of the above mentioned peptides could underlie their neuroprotective action during reperfusion,
when a significant amount of free radicals has been formed
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Improving the Listening Ability of Students by Using English Songs
Get PDFABSTRACT
Kalfin Rombe Padati. 2011. Improving the Listening Ability of Students by Using
English Songs. A thesis. Faculty of Languages and Literature. State University of
Makassar. (supervised by Djamiah Husain and Amra Ariyani).
The objective of the research was to find out whether the use of English songs
improves the ability of students in listening or not. The writer applied preexperimental
method with one group pretest and posttest design. The subject of the
research was the first grade students of SMA Hasanuddin Gowa of academic year
2010-2011. The research used total sampling, consists of 43 students. The data were
collected through listening test (pretest and posttest). To find out whether the uses of
English songs improve the listening ability of senior high school students, the writer
uses t-test analysis. The result of the data analysis showed that there was a significant
difference between pretest and posttest. It was proven by the value of t-test (23.79)
which was greater than the t-table (2.021) with the level of significance (α) = 0.05
and degree of freedom (df) = 42. The mean score of the posttest (57.51) was greater
than the mean score of pretest (33.72). Based on the finding and discussion of the
study, the writer concludes that the use of English songs can improve listening
comprehension of the first grade of SMA Hasanuddin Gowa
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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