1,721,142 research outputs found
Knowledge sharing behaviour among Malaysian students / Hisham Ibrahim Hussein Mallasi
Full text linkKnowledge sharing is a social interaction among individuals. People share knowledge for many reasons. Past studies focused mainly on reward system particularly monetary. This may be true for individuals working in organizations. However, there have not been many empirical data that analyses why individual students share knowledge as there is no monetary rewards at stake. Thus, this study aims to investigate the influence of the non-monetary factors (such as enjoy helping others, reputation, self efficacy, interpersonal trust, humility) on knowledge sharing behavior among postgraduate students. In addition, the study also analyses the role of religiosity on knowledge sharing behavior and non monetary factors.
Empirical data was collected using a survey questionnaire. The questionnaire was distributed to the postgraduates based on quota sampling method to ensure representativeness of the targeted population. A total of 1683 questionnaires were distributed to six public universities in the Klang Valley. However only 1267 were complete and used for analysis. The results of the analysis illustrated some new findings. One, it was found that humility was factorised into two and was renamed as general humility and scholarly humility whereas previous study is based on humility in general. Two, non monetary factors such as enjoy helping others, self efficacy, interpersonal trust have a significant impact on knowledge sharing while reputation does not. In addition, it was discovered that religiosity plays a moderating role in the relationship between non-monetary factors and knowledge sharing behaviour
sj-doc-1-jis-10.1177_01655515211061866 – Supplemental material for A comprehensive bibliometric analysis on opinion mining and sentiment analysis global research output
No full textSupplemental material, sj-doc-1-jis-10.1177_01655515211061866 for A comprehensive bibliometric analysis on opinion mining and sentiment analysis global research output by Ibrahim Hussein Musa, Ibrahim Zamit, Kang Xu, Khaoula Boutouhami and Guilin Qi in Journal of Information Science</p
Engineering properties of pervious concrete containing palm oil clinker aggregate / Ibrahim Hussein Adebayo
Full text linkIn recent time, frequent flooding has been occurring in major cities around the world due to the combination of increased rainfall and high rate of impermeable surface areas. Pervious concrete is widely accepted as an emerging technology for storm water management. This research was focused on adopting locally available waste material in producing eco-friendly pervious concrete. The aim of this study was to develop pervious concrete containing palm oil clinker (POC) coarse aggregates as an alternative replacement for natural aggregates. Mix proportions were based on four different cement contents at a constant water to cement ratio and cement to aggregate ratio respectively. The effects of mix constituents; aggregate size, cement content and curing method on the properties of the concrete were investigated. Two single-sized grades of aggregates were investigated for POC pervious concrete under three curing methods. The volumetric replacement levels of aggregates with POC were 0%, 25%, 50, 75% and 100%. Engineering properties including compressive strength, porosity, permeability, abrasion resistance and density, as well as sustainability efficiency of the concrete were studied. Generally, increasing the cement content led to increased compressive strength, density and abrasion resistance, while porosity and permeability of the concrete reduced. Meanwhile, the effect of increasing the cement content was marginal compared to the effect of incorporating POC aggregate into the concrete mix. POC aggregate properties such as ACV, L.A abrasion value, shape, size and texture played a vital role in the skeleton structure formation of the concrete. POC being a friable material with pores and irregularly shaped negatively affected the engineering properties of the POC pervious concrete. However, POC pervious concrete mixes containing 9.5mm aggregate sizes showed better engineering properties than the mixes with 12.5mm aggregate size. Since abrasion resistance test is dependent not only on compressive strength and porosity of the concrete but also the surface finishing of the concrete, the surface roughness of POC aggregate influenced the outcome of the POC pervious concrete resistance to abrasion. Furthermore, the effect of curing was minimal on the mechanical properties of the concrete. Curing the concrete in air resulted in about 10% loss in compressive strength due to uncontrolled temperature and humidity condition. However, abrasion resistance of the concrete was improved when full water curing was adopted, whereas air curing method was the least effective. Based on the inter-relationship between the compressive strength, porosity and coefficient of permeability of the POC pervious concrete, optimum mix was identified as 25% POC replacement with POC pervious concrete containing 9.5mm nominal size aggregate. This study concludes that the POC pervious concrete is not suitable for structural application due to its reduced strength. However, it could be acceptable for other applications where the concrete will not be subjected to heavy loads. Incorporation of POC into the concrete mix reduced discharge of CO2 which is dangerous to the environment by 20%
Knowledge management applied to Dar Al Handasah Mechanical Department - by Ibrahim Hussein Ghosn
No full textProject (M.E.M.)--Engineering Management Program, AUB, 2003
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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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