1,721,032 research outputs found
Fitoplankton di Sungai Panjaratan, Kabupaten Tanah Laut, Kalimantan Selatan
No full textFitoplankton adalah salah satu dari sekian potensi alam di Sungai Panjaratan Kabupaten Tanah Laut yang bermanfaat sebagai sumber belajar materi protista untuk jenjang SMA. Tujuan penelitian adalah mendata spesies fitoplankton di Sungai Panjaratan. Fitoplankton disampel dengan plankton net pada 30 ml air yang diambil dari dasar hingga permukaan perairan Sungai Panjaratan dengan 3 kali pengulangan pada bulan Maret 2015. Dari 22 spesies fitoplankton yang ditemukan, 11 spesies termasuk dalam Kelas Bacillariaphyceae, 7 Chlorophyceae, 3 Cyanophyceae, dan 1 Euglenophyceae
Spesies ikan di Sungai Panjaratan, Kabupaten Tanah Laut, Kalimantan Selatan
No full textPemanfaatan beragam spesies ikan yang menghuni Sungai Panjaratan, Kabupaten Tanah Laut berorientasi lebih pada bahan konsumsi atau bahan makanan. Ikan-ikan belum dimanfaatkan sebagai materi dalam kegiatan belajar mengajar konsep Vertebrata di Sekolah Menengah Atas (SMA). Penelitian ini bertujuan untuk mendata spesies ikan di Sungai Panjaratan. Ikan ditangkap dengan alat tangkap (jala lempar, kail, tempirai, dan jarring ikan) di alur sungai depan permukiman dan alur sungai sekitar persawahan pada Maret 2015. Diperoleh 23 spesies yang tercakup dalam 14 famili ikan. Ikan-ikan ini adalah sumber belajar untuk sekolah terdekat dan selanjutnya dapat digunakan sebagai materi ajar
Capung di kawasan rawa Desa Sungai Lumbah, Kabupaten Barito Kuala
No full textBody of Odonata (dragonfly and damsefly) consists of head (caput), chest (synthorax), and abdomen (abdomen). Odonata is usefull to control pests and diseases. Its nymph consumes many aquatic animals causing diseases in humanm such as malaria and dengue fever. It can also used as bioindikator for clean water. The research aimed to describe species of Odonata found in the swamp area of Sungai Lumbah Village, Barito Kuala Regency. We took pictures of Odonata and caught it with insect net. Then sampels were identified in biology laboratory of Lambung Mangkurat Univeristy. We found 14 species; 8 species of Libellulidae, 1 Gomphidae, and 5 Coenagrionidae
Jenis tumbuhan paku di Kawasan Rawa Sungai Lumbah, Kabupaten Barito Kuala
No full textFerns (Pteridophyta) is pioneer plants who were able to survive on various environmental conditions, one of which is the peat swamp area in South of Kalimantan. They play on an important role in ecosystem. This research was conducted in the Sungai Lumbah swamp area where galam tree dominantly grow and rice field are developed. The purpose of the research was to determine ferns (Pteridophyta) in the swamp area. Data was collected through survey method. Ferns collected were growing along the road. Ferns were identified and described in accordance with their morphology. There were galam trees dan rice field in the swamp area of Sungai Lumbah. Seven species growing in the area were Stenochlaena palustris, Acrostichum sp., Blechnum sp., Nephrolepis hirsutula, Cyclosorus interruptus, Lygodium scandens, and Lygodium fexsuosum
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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