1,720,964 research outputs found
ASPEK BOTANI DAN PEMANFAATAN MENDONG (Fimbristylis globulosa (Retz.) Kunth) DI KECAMATAN WAJAK,MALANG
Full text link-
INFESTATION OF Cercospora LEAFSPOT ON PULE PANDAK (Rauvolfia serpentina) AT PARANG VILLAGE, KEDIRI, EAST JAVA
No full textINTERSEPSI, LOLOSAN TAJUK, DAN ALIRAN BATANG EMPAT JENIS POLONG-POLONGAN UNTUK KONSERVASI TANAH DAN AIR
Full text linkLegume trees species (Fabaceae family) are widely used in the rehabilitation of degraded land as pioneer plants and soil fertilizers. The hydrological performances of legume trees for soil and water conservation have not been well known. The purpose of this study was to evaluate the amount of canopy interception, stem flow, and throughfall of four legume trees species in the Purwodadi Botanic Gardens. Four local legume species of Purwodadi Botanic Gardens collections were selected, namely Pterocarpus indicus, Cassia javanica, Senna siamea, Saraca indica and their hydrological performances were observed during 20–30 rainy days. The results indicated that the four legumes species have a similar canopy architecture model, namely trolls. Variations in the morphological characteristics of trees and leaves contribute variation value for canopy interception, throughfall, and stem flow. Interception and throughfall of the four tree species were valued at 30–70%, with a small stem flow ranging from 1–2%. Based on their hydrological performances, planting of the four legumes tree species for soil and water conservation requires efforts to control their high throughfall characteristic.Jenis polong-polongan (suku Fabaceae) banyak digunakan dalam kegiatan rehabilitasi lahan terdegradasi sebagai tanaman pionir dan penyubur tanah. Kinerja hidrologi pohon jenis polong-polongan dalam kaitannya dengan konservasi tanah dan air belum banyak diketahui. Tujuan penelitian ini adalah untuk mengevaluasi besarnya lolosan tajuk, aliran batang dan intersepsi empat jenis polong-polongan terseleksi di Kebun Raya Purwodadi. Empat jenis pohon polong-polongan lokal yaitu Pterocarpus indicus, Cassia javanica, Senna siamea, dan Saraca indica diamati kinerja hidrologinya selama 20–30 hari hujan. Hasil penelitian menunjukkan bahwa keempat jenis polong-polongan yang memiliki model arsitektur tajuk yang sama yaitu troll dengan variasi karakteristik morfologi pohon dan daun menghasilkan variasi nilai pada intersepsi tajuk, lolosan tajuk dan aliran batang. Intersepsi dan lolosan tajuk keempat jenis pohon mempunyai nilai seimbang berkisar 30–70%, dengan aliran batang yang dihasilkan kecil berkisar 1–2%. Berdasarkan kinerja hidrologinya tersebut, penanaman keempat jenis polong-polongan untuk konservasi tanah dan air memerlukan upaya pengendalian lolosan tajuknya
Prosiding I Seminar Hasil-Hasil Penelitian Bidang Ilmu Hayat
Full text linkOrchid is a big plant family, which spreads all over the world. Purwodadi Botanic at Garden concerns with the conservation of dry lowland plants, including orchid species. The orchid collections in Purwodadi Botanical Garden consist of 620 species. They were collected from many islands in Indonesia and other countries, 192 species of them are from East Java.Orchids of East Java need to be conserved since their habitat in the forest have been reduced This paper will discuss ex situ conservation of orchid collections at Purwodadi Botanic Garden
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
- …
