1,720,956 research outputs found
Pengenalan Konsep Dasar dan Praktikum Kimia Sederhana Pada Siswa Dan Guru di SMA Negeri 42 Maluku Tengah
Full text linkCommunity service is an integral part of the Tri Dharma of Higher Education, playing a crucial role in the development of knowledge and the improvement of societal well-being. As a tangible manifestation of this responsibility, the faculty members of the Chemistry Department at FMIPA, Universitas Pattimura, conducted a community service program titled "Introduction to Basic Chemistry" at SMA Negeri 42 Maluku Tengah. This program aimed to enhance students' interest and understanding of chemistry through interactive and educational approaches. The methods employed included the dissemination of information about the Chemistry Department, the introduction of basic chemistry concepts, interactive discussions, and a survey of students' interest before and after the program. The results showed a significant increase in students' interest in chemistry, with the most substantial growth observed in their interest in further exploring and pursuing studies in the field. Positive feedback from students and accompanying teachers affirmed the effectiveness of the approach used. In conclusion, this community service program successfully achieved its primary objectives and contributed positively to strengthening scientific literacy among students.
Keywords: Community service; chemistry; scientific literacy; student interest; interactive method
Pelatihan Penggunaan Software Avogadro untuk Pemodelan Senyawa Hidrokarbon Sederhana kepada Siswa Kelas XI IPA SMA Negeri 5 Maluku Tengah
No full textLearning Hydrocarbon at the High School requires qualified teaching aids. The limitations of teaching aids make students' knowledge of the spatial structure (3 dimensions) of hydrocarbon compounds not following the content being studied so that they do not achieve the expected competence. In the end, this impacts the difficulty of understanding the same material at a higher level, high school. For this reason, the training on the use of the Avogadro software is expected to provide knowledge to students on how to operate the software, and students can do modeling for simple hydrocarbon compounds. In the end, the students understand how the three-dimensional structure of hydrocarbon compounds looks. We need the help of software that students can use in studying molecular structures, especially hydrocarbon compounds. In this service process, a training method is carried out using demonstrations of the operating steps of the Avogadro software and is followed by all training participants. The results obtained are that the participants (Science class students of SMA Negeri 5 Maluku Tengah) can perform modeling with Avogadro software, drawing 3-dimensional structures, optimizing geometry and determining structural parameters of simple hydrocarbon molecules
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
CHARACTERISATION OF ACTIVATED CARBON FROM WHITE SNAPPER SCALES (Lates calcarife) WASTE
Full text linkABSTRACT
Research on the characterisation of activated carbon of white snapper (Lates calcarifer) scales waste, obtained through carbonisation process, fish scales were put in a furnace at 350 oC for 2 hours. Then cooled and sieved with a 100 mesh sieve, characterised by XRD, resulting in three peaks with the strongest intensity at 2θ regions of 26.45o, 32.69o, and 33.60o respectively. The surface acidity of carbon solids before and after activation were (4.48x10-3 and 7.77x10-3) mol/g, respectively. The activation process of white snapper scales (Lates calcarifer), increases the surface area of carbon can react with other chemicals. Subsequently, it was calcined at 450 oC under vacuum conditions for 2 hours with N2 gas, and characterised by XRD. The results showed a shift in 2θ peaks of 26.52o, 29.66o, and 32.77o, respectively. The carbon was activated by soaking with 3 M KOH activator for 15 hours, washed with distilled water, and dried in an oven at 110°C for 1 hour, characterised by XRD, and the peaks with the strongest intensity were obtained at 26.22°C, 29.12°C, and 32.43°C, with increasing basal spacing.
Keywords: activated carbon, white snapper scales, XR
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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