132,109 research outputs found
AgandCuloadedonTiO2/graphite as a catalyst for �Escherichia coli- contaminated water disinfection
Get PDFTiO2 film was synthesized by means of the chemical bath deposition (CBD) method from TiCl4
as a precursor and surfactant cetyl trimethyl ammonium bromide (CTAB) as a linking and assem-
bling agent of the titanium hydroxide network on a graphite substrate. Ag and Cu were loaded
on the TiO2 film by means of electrodeposition at various applied currents. Photoelectrochemical
testing on the composite of Ag–TiO2/G and Cu–TiO2/G was used to define the composite for
Escherichia coli-contaminated water disinfection. Disinfection efficiency and the rate of disinfection
of E. coli-contaminated water with Ag–TiO2/G as a catalyst was higher than that observed for
Cu–TiO2/G in all disinfection methods including photocatalysis (PC), electrocatalysis (EC), and
photoelectrocatalysis (PEC). The highest rate constant was achieved by the PEC method using
Ag–TiO2/G, k was 6.49 × 10−2
CFU mL−1
min−1
. Effective disinfection times of 24 h (EDT24)
and 48 h (EDT48) were achieved in all methods except the EC method using Cu–TiO2/G.
Keywords: Ag–TiO2/G, Cu–TiO2/G, Escherichia coli, disinfectio
THE INFLUENCE OF SPECIAL ITEMS TO CORE EARNINGS IN EARNINGS MANAGEMENT AT MANUFACTURING COMPANIES LISTED IN JAKARTA STOCK EXCHANGE
Get PDFThis paper examines the classification of items within the income statement
as an earnings management tool. Evidence is consistent with managers
opportunistically shifting expenses from core expenses (cost of goods sold and
selling, general, and administrative expenses) to special items. This vertical
movement of expenses does not change bottom-line earnings, but overstates ‘‘core’’
earnings.
Keywords: earnings management; earnings components; special items
MeSH term explosion and author rank improve expert recommendations
Get PDFInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Reading across the curriculum in a bilingual context: reading strategy use in three upper secondary schools in Brunei
No full textThe students in the Brunei mainstream education system eventually learn most subjects in English, which is not the first language for most of them. Reading in English is valued as it provides access to knowledge across the curriculum for the majority of students in Brunei as elsewhere too. Reading both for comprehension and learning are two areas of interest in this study. This thesis looks at the strategy use of (upper) secondary students of different abilities from three schools in Brunei when reading their academic materials in English. It aims to compare reading strategies the students used and which strategies the teachers taught (the use of) in two subject areas: English Language and Content Subjects.Adopting both quantitative and qualitative approaches, data was primarily collected from upper secondary students in three schools in Brunei; one of which consists of high ability students while the other two schools have mixed ability students. In the quantitative part of the study, students responded to the questionnaire on the perceived reading strategies used when reading. In the qualitative part of the study, twenty five students participated in semi-structured interviews where ten of them did a think-aloud reading activity.In terms of reading strategy use, the quantitative results showed that students employed cognitive reading strategies more than metacognitive strategies when they read in English. The qualitative results also revealed that students of different ability groups, in general did not differ greatly in the types of strategies they used. However, the frequency in the use of strategies and in the elaboration and execution of these strategies do vary among the students and across the two subject areas. Findings of the study further suggest that; (a) reading in the two subject areas differ in the emphasis of reading strategies, (b) ability may contribute to the differences in strategy use among students in the two subject areas
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
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
Get PDFBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Pengelolaan faktur kendaraan bermotor pada bagian admin STNK & BPKB di PT Istana Lampung Raya [CD-Tugas Akhir] /Rahmawati Dewi
No full text929.9 Dew p SURAT TANDA NOMOR KENDARAAN ( STNK
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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