1,721,191 research outputs found

    HANAFI ISMAIL TOKOH PERSATUAN ELEKTRON MIKROSKOPI MALAYSIA

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    KUALA LUMPUR , 4 Disember 2015 - Dekan Pusat Pengajian Kejuruteraan Bahan dan Sumber Mineral, Universiti Sains Malaysia (USM), Profesor Dr. Hanafi Ismail hari ini dinobatkan sebagai Tokoh dalam kalangan ahli Persatuan Elektron Mikroskopi Malaysia (PEMM). Pengiktirafan tersebut diberikan semasa majlis perasmian 24th Scientific Conference of Microscopy Society Malaysia (SCMSM) 2015 di Melaka, kelmarin

    The efficacy of different type of phototherapy light devices for neonatal jaundice treatment / Mohammad Hanafi Ismail

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    It has been reported that 60% of term neonates and 80% of the pre-terms develop jaundice in the first week of life and the proportion of jaundice in Malaysia is on the rise. As phototherapy light is the primary source of treatment for jaundice, it is crucial for hospital to have the best phototherapy light devices which can help to treat jaundice effectively. This would help to shorten neonate patient hospital stay, reduce staff workload as well as increasing treatment capacity of the hospital. Hospitals in Malaysia are using several type of phototherapy devices in their wards. The most commonly found are Light Emitting Diode (LED) and conventional fluorescent light devices. This observational study compares the efficacy of three different types of phototherapy light devices; LED, 6-tubes fluorescent light & 4-tubes fluorescent light in jaundice treatment. Total of 15 term infant subject patients were included and assigned into three groups where 5 patients were treated for each device group. Inclusion criteria for the subject includes term patient, admission weigh of more than 2.5kg and reached total serum bilirubin (TSB) level which need phototherapy treatment. The primary outcome measured was the rate of TSB reduction in jaundice patients within 24 hours period while the secondary outcome measured was the total treatment time needed for every jaundice patient prior to discharge. For primary outcome, results showed the rate of mean TSB reduction for LED is significantly higher than both of the conventional fluorescent light devices (P<0.05). Meanwhile, the rate of mean TSB reduction for both 6-tubes and 4-tubes fluorescent light devices were similar (P>0.05). For secondary outcome, although LED recorded the shortest mean treatment time prior to discharge, there is no significant difference in the mean treatment time between each group of phototherapy light devices (P>0.05). This study concludes that LED phototherapy light device is more efficacient that both type of conventional phototherapy devices; 4-tubes and 6 tubes fluorescent light devices in reducing TSB level of jaundice patient

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Thermal, flammability, and morphological properties of sepiolite-filled ethylene propylene diene monomer composites

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    The effects of different sepiolite contents on the thermal stability, flammability, and morphological properties of sepiolite-filled ethylene-propylene-diene monomer composites were studied. These sepiolite-filled composites, containing 0-70 parts per hundred rubber (phr) of sepiolite fillers, were prepared through the conventional processing method of using a two-roll mill. The results demonstrated a significant increase in the thermal stability of the composites when sepiolite loading was increased compared to unfilled composites. The results also showed a decrease in the linear rate of burning of the composites with increasing sepiolite loading. The morphological study confirmed the presence of unburned sepiolite, which increased the flammability resistance of the composites

    Variations on the Author

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    “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

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    We 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

    Comparison of the effects of palm oil ash, carbon black and halloysite nanotubes on the properties of polypropylene/recycled natural rubber glove composites

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    The comparative effects of palm oil ash (POA), carbon black (CB) and halloysite nanotubes (HNTs) on the processability, mechanical properties and thermal stability of polypropylene/recycled natural rubber glove (PP/rNRg) composites were studied. The POA based composites showed the lowest processability. The HNTs has a better reinforcement effect compared to POA and CB. HNTs showed a higher tensile strength at 2 phr, whereas POA and CB showed their highest tensile strengths at 4 phr. All fillers reduced the elongation at break but increased the tensile modulus of PP/rNRg composites. The incorporation of POA, CB and HNTs improved the thermal stability of PP/rNRg composites

    Dispelling the Myths Behind First-author Citation Counts

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    We 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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