A new species of Phoradendron, Ph. mathiasenii, is described, and a range extension and host are given for Ph. tikalense. Both species are from Honduras and grow as epiparasites, i.e., mistletoes parasitizing other mistletoes. The parasitic host for both epiparasitic species of Phoradendron is Psittacanthus angustifolius (Loranthaceae), which in turn is parasitic on the terrestrial host, Pinus ...

Reservoirs in the southern Pennines have been investigated to determine their potential for reconstructing a history of atmospheric pollution. A selection procedure has been used to identify sites with the best chance of obtaining a usable sedimentary record prior to sample collection. Five reservoirs were selected for core collection and sediment analysis using magnetic susceptibility (%if), p...

Existing profilers for Java applications typically rely on custom instrumentation in the Java virtual machine, and measure only limited types of resource consumption. Garbage collection and multi-threading pose additional challenges to profiler design and implementation. In this paper we discuss a general-purpose, portable, and extensible approach for obtaining comprehensive profiling informati...

Although common sense says that all nodes of a cluster should behave identically since they consist of exactly the same hardware parts and are running the same software, experience tells otherwise. We present a collection of programs and tools that were gathered over several years during various cluster installations at different sites with clusters from various vendors. The collection contains...

DIAL will enable users to analyze very large, event-based datasets using an application that is natural to the data format. Both the dataset and the processing may be distributed over a farm, a site (collection of farms) or a grid (collection of sites). Here we describe the goals of the project, the current design and implementation, and plans for future development. DIAL is being developed wit...

Data concerning the price, cosmetic quality, and consumption of organic and conventional produce items were collected at two retail outlets in Tucson, Arizona. Data were gathered on Monday and Tuesday afternoons during a twelve week period between February 7 and April 26, 1994. The two retail stores were chosen as sites for data collection and consumer surveying because they stocked both organi...

Based on an extensive collection of sigma 70 associated regulatory mechanisms, a grammatical model has been constructed that define the functional positions and combinations of sites within DNA regulatory regions. The syntactic rules and the dictionary implemented in a Prolog program were coupled to consensus matrices used as "sensors" to integrate a syntactic recognizer. A systematic compariso...

the following three procedures have been used to determine the sex ratio of s.sphegea. the fly is one of the two iranian species of the genus sepedon which is fairly dominant in the focus area of schistosomiasis in khuzestan (south of iran) and by far abundant in the provinces of gilan and mazandaran, north of the country. a) collection of adults in late summer of 1975, about 200 adults s.spheg...

in vitro methods provide a variety of tools to supplement traditional methods for collection, propagation and preservation of endangered plant species. in this study, an efficient protocol was developed for in vitro propagation of colutea gifana, a rare and endangered plant species with limited reproductive capacity that grows in a narrow area of iran. single node explants were used for a serie...

The current study included the collection and classification of mosquitoes identification some species because their medical veterinary importance in terms harmful effect on health transmission diseases. Three were diagnosed different sites, namely Anopheles, Culex Aedes, where five types Anopheles four recorded. As for third genus, two it recorded, proportions collected from sites varied among...