Kreuz und quer durch die indische Welt : Erlebnisse und Abenteuer in Vorder- und Hinterindien, Sumatra, Java und auf den Andamanen /

Mode of access: Internet.

Ueber das auftreten des Strongylus pinguicola (Sclerostoma pinguicola Verrill, Stephanurus dentatus Diesing) auf Java und Sumatra.

"Sonderabdruck aus dem Centralblatt f. bakt. etc. I. abt. Originale. bd. 57. hft. 3."

Gazetteer to maps of Sumatra, map series AMS T511, Scale 1:250,000.

"Glossary": p. iv-vi.

Mijne Uit-en Terugreize Naar Java, Sumatra en Andere Nederlandsche Oost-Indische Bezittingen [microform].

Master microform held by: NN.

Voyage of the United States frigate Potomac : under the command of Commodore John Downes, during the circumnavigation of the globe, in the years 1831, 1832, 1833, and 1834; including a particular account of the engagement at Quallah-Battoo, on the coast of Sumatra; with all the official documents relating to the same /

Mode of access: Internet.

Die Battas in ihrem Verhaltniss zu den Malaien von Sumatra.

Thesis (doctoral)--Universitat Leipzig.

Uber Andesite der Vulkane Sago, Merapi, Manindjau und Kaba auf Sumatra.

Thesis (doctoral)--Konigl. Universitat Breslau.

Midden-Sumatra. Reizen en onderzoekingen der Sumatra-expeditie, uitgerust door het Aardrijkskundig genootschap, 1877-1879,

v. 1. Reizen in Midden-Sumatra, 1877-1879. 2 v.--v. 2. Aardri jkskundige beschri jving van Midden-Sumatra.--v. 3:1:1, Volksbeschrijving van Midden-Sumatra, door A. L. van Hasselt.--v. 3:1:2, Ethnographische atlas van Midden-Sumatra, met verklarenden tekst, door A. L. van Hasselt.--v. 3:2, De talen en letterkunde van Midden-Sumatra, door A. L. van Hasselt.--v. 4:1, Bi jdragen tot de kennis der fauna van Midden-Sumatra, door Joh. F. Snelleman. 2 v.--v. 4:2, Bijdragen tot de kennis der flora van Midden-Sumatra, door A. L. van Hasselt en Dr. J. G. Boerlage.

Assessing the performance of a nucleus estate and smallholder scheme for oil palm production in West Sumatra: a stochastic frontier analysis

In this paper, we study the performance of smallholders in a nucleus estate and smallholder (NES) scheme in oil palm production schemein West Sumatra by measuring their technical efficiency using a stochastic frontier production function. Our results indicate a mean technical efficiency of 66%, which is below what we would have expected given the uniformity of the climate, soils and plantation construction among the sample farmers. The use of progressive farmers as a means of disseminating extension advice does not appear to have been successful, and more rigorous farmer selection procedures need to be put in place for similar schemes and for general agricultural extension in future. No clear relationship was established between technical efficiency and the use of female labour, suggesting there is no need to target extension services specifically at female labourers in the household. Finally, education was found to have an unexpectedly negative impact on technical efficiency, indicating that farmers with primary education may be more important than those with secondary and tertiary education as targets of development schemes and extension programs entailing non-formal education. (C) 2003 Elsevier Ltd. All rights reserved.

Image classification accuracy from LANDSAT data for tropical rain forest in Sumatra: An evaluation of ERDAS imagine software

Abstract not available

Anaerobic oxidation of methane at a marine methane seep in a forearc sediment basin off Sumatra, Indian Ocean

A cold methane seep was discovered in a forearc sediment basin off the island Sumatra, exhibiting a methane-seep adapted microbial community. A defined seep center of activity, like in mud volcanoes, was not discovered. The seep area was rather characterized by a patchy distribution of active spots. The relevance of anaerobic oxidation of methane (AOM) was reflected by C-13-depleted isotopic signatures of dissolved inorganic carbon. The anaerobic conversion of methane to CO2 was confirmed in a C-13-labeling experiment. Methane fueled a vital microbial community with cell numbers of up to 4 x 10(9) cells cm(-3) sediment. The microbial community was analyzed by total cell counting, catalyzed reporter deposition fluorescence in situ hybridization (CARD FISH), quantitative real-time PCR (qPCR), and denaturing gradient gel electrophoresis (DGGE). CARD FISH cell counts and qPCR measurements showed the presence of Bacteria and Archaea, but only small numbers of Eukarya. The archaeal community comprised largely members of ANME-1 and ANME-2. Furthermore, members of the Crenarchaeota were frequently detected in the DGGE analysis. Three major bacterial phylogenetic groups (delta-Proteobacteria, candidate division OP9, and Anaerolineaceae) were abundant across the study area. Several of these sequences were closely related to the genus Desulfococcus of the family Desulfobacteraceae, which is in good agreement with previously described AOM sites. In conclusion, the majority of the microbial community at the seep consisted of AOM-related microorganisms, while the relevance of higher hydrocarbons as microbial substrates was negligible.