1,720,977 research outputs found
A new species of Lasjia (Proteaceae) from Sulawesi: Lasjia griseifolia Utteridge & Brambach
No full textLasjia griseifolia
Utteridge & Brambach, a member of the Proteaceae, is described and illustrated as a new species from the Indonesian island of Sulawesi. The new species is similar to
L. erecta
, also from Sulawesi, and morphological differences between the taxa are discussed; a line illustration and detailed notes on the conservation status are provided
Revision of Calamus and Daemonorops (Arecaceae) in Sulawesi
Full text linkThe rattans of Sulawesi presented by three different genera Calamus, Daemonorops and Korthalsia. Calamus and Daemonorops belong to subtribe Calaminae whereas Korthalsia belongs to subtribe Korthalsiinae. In Sulawesi Calamus is the biggest rattan genus with the number of species more than 23. This genus is very common tropical genus with the centre of diversity is in South East Asia. In Sulawesi Daemonorops consist of 7 species, whereas Korthalsia has one species only that is K. celebica, endemic species to Sulawesi. Recently the biodiversity of Sulawesi has been under severe threats caused by increasing large scale deforestation projects. Many commercial rattans has been illegally harvested and used as raw material for rattans industry. This alarming fact has ecological impact to the rattans of Sulawesi in the form of imminent massive of biodiversity lost. This situation is very true especially for the rattans because almost all species are climbers and they need trees to support their existence. With the intention to minimize the thread to the existence of the rattans of Sulawesi, basic study on the rattans taxonomy is needed as well as accurate documentation. Definite species delimitation is essential to be studied as the diversity continuously under threats and decreased
Calamus vitiensis (ARECACEAE), A NEW RECORD OF RATTAN IN SUMBAWA ISLAND, INDONESIA
No full textCalamus vitiensis, previously known to occur only in Papua New Guinea, Australia (Queensland), the Solomon Islands, Vanuatu, and Fiji is now also found in the mountainous area of Batudulang, West Sumbawa, Lesser Sunda Islands, Indonesia. This paper presents a complete report of the description, notes, and illustrations of the species
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
INVENTARISASI PALEM DI HUTAN BODOGOL, TAMAN NASIONAL GUNUNG GEDE PANGRANGO
Full text linkPalms inventory at Bodogol Forest, Mount Gede Pangrango National Park found 19 species of palms from nine genera. All those 19 species are two species of Arenga, three species of Calamus, two species of Caryota, five species of Daemonorops, one species of Korthalsia, one species of Nenga, two species of Pinanga, one species of Plectocomia and two species of Salacca. One species of Salacca is unidentified, further study is needed to clear up its taxonomy status. Identification key, synopsys of each species and its distribution at Bodogol forest are presented. Conservation status of each species presented
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
STUDI PENYEBARAN SPASIAL PALEM DI HUTAN LINDUNG GUNUNG SLAMET, JAWA TENGAH [Study on Palm spatial distribution at Gunung Slamet Nature Forest, Central Java]
No full textEcological studies and the spatial distribution of two forest ecosystem, natural forest and mixed forest, on Mount Slamet, Baturaden, Central Java has been done. There are 12 species of palms in natural forests, Calamus asperimus, C. heteroideus, C. javensis, Calamus sp. 1, Calamus sp. 2, Caryota maxima, C. mitis, Daemonorops rubra, Pinanga coronata, P. javana, Plectocomia elongata, and Salacca zalacca. While in the mixed forest were found six species of palm that were C. asperimus, C. ciliaris, Caryota maxima, Pinanga coronata, P. javana, and Plectocomia elongata. The species that had highest Importance Value Index (IVI) in the two types of ecosystems were Pinanga coronata. Pattern of its distribution both in natural and mixed forests have Morisita index value> 0. This value means that palm has a clustered distribution pattern. The highest spatial distribution of natural palm forest was found in 8-15% slopee class and height class 1,100 - 1200 m asl. Whereas for mixed forest it is found mostly in slopee class 8-15% and height class 900 - 1,000 m asl
Daemonorops sedisspirituum, a new species of Daemonorops Blume (Arecaceae: Calamoideae) from Java
No full textA new species of the rattan genus Daemonorops is recorded for Java, Daemonorops sedisspirituum. D. sedisspirituum is closely allied to D. hirsuta and D. oblonga but differs in stem size, sheath armature, and seed surface
- …
