Parallel computers are increasingly being used to run large-scale applications that also have huge input/output (I/O) requirements. However, many applications obtain poor I/O performance on modem parallel machines. Th...
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Parallel computers are increasingly being used to run large-scale applications that also have huge input/output (I/O) requirements. However, many applications obtain poor I/O performance on modem parallel machines. This two-part special issue of the International Journal of High Performance Computing applications contains papers that describe the I/O requirements and the techniques used to perform I/O in real parallel applications. The authors first explain how the I/O application program interface (API) plays a critical role in enabling such applications to achieve high I/O performance. They describe how the commonly used UNIX I/O interface is inappropriate for parallel I/O and how an explicitly parallel API with support for collective I/O can help the underlying I/O hardware and software perform I/O efficiently. They then describe MPI-IO, a recently defined, standard, portable API specifically designed for high performance parallel I/O. They conclude with an overview of the papers in Part 1 and Part 2 of this special issue.
From January 1995 to September 1996, 14 isolates of Sphingomonas paucimobilis, including 11 from clinical specimens from six patients with nosocomial infection and three from environmental sources, were collected. Two...
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From January 1995 to September 1996, 14 isolates of Sphingomonas paucimobilis, including 11 from clinical specimens from six patients with nosocomial infection and three from environmental sources, were collected. Two of the six patients had intravascular catheter-related bacteremia and one each had bacteremic biliary tract infection, urinary tract infection, ventilator-associated pneumonia, and wound infection. The S. paucimobilis isolates were identified according to biochemical profiles established with use of the API 20NE system and Vitek GNI card and the characteristic cellular fatty acid chromatogram. Ten biotypes, 11 antibiograms (by the Etest), and 12 random amplified polymorphic DNA (RAPD) patterns (by arbitrarily primed polymerase chain reaction) were identified. The identical biotype, antibiogram, and RAPD pattern of the two isolates (one each from blood and bile) from a patient with biliary tract infection indicated the invasiveness of the organism. Two patients with intravascular catheter-related bacteremia had isolates of this organism repeatedly recovered, and these isolates had heterogeneous RAPD patterns. The present study highlights the wide distribution in hospital environments of various clones of S. paucimobilis, which may cause recurrent infections by a single strain or several episodes of infection due to two or more clones of this organism in hospitalized patients.
It was recently reported that strains of Streptococcus pyogenes are capable of inducing entry of the bacterium into epithelial cells;however, nothing is known regarding the gene(s) and the underlying mechanism(s) invo...
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It was recently reported that strains of Streptococcus pyogenes are capable of inducing entry of the bacterium into epithelial cells;however, nothing is known regarding the gene(s) and the underlying mechanism(s) involved, Using isogenic mutants of S. pyogenes JRS4 strain that are defective in the expression of each of the surface proteins F1 and M6, it was demonstrated that both are required for efficient internalization. Expression of F1 on the surface of a poorly invading S, pyogenes strain significantly enhances its internalization efficiency, Protein F1-mediated internalization is inhibited by UR, the nonrepetitive fibronectin-binding domain of this protein, and to a lesser extent, by the repetitive fibronectin-binding domain, RD2, Polyclonal anti-human fibronectin antibodies completely abolish F1-mediated internalization;increasing fibronectin concentrations result in a significant enhancement of bacterial uptake. The findings shown here suggest that protein F1 mediates streptococcal internalization and that the M6 protein is required for more efficient entry of the bacterium.
Focuses on the use of the phrase `from a distance land afar,' in the book `Iliad,' with reference to Peloponnese in Greece. How Peloponnese got its name; Information on Istrus Callimachus; Comments from Istrus...
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Focuses on the use of the phrase `from a distance land afar,' in the book `Iliad,' with reference to Peloponnese in Greece. How Peloponnese got its name; Information on Istrus Callimachus; Comments from Istrus; Reference to the book by Rhianus, pertaining to the genealogy of the eponymous river Apis.
Studies throughout Central and Eastern Europe have highlighted the importance of establishing and developing adequate telecommunications. In the particular area of radio communications, an harmonised regional approach...
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ISBN:
(纸本)8390199963
Studies throughout Central and Eastern Europe have highlighted the importance of establishing and developing adequate telecommunications. In the particular area of radio communications, an harmonised regional approach is of utmost importance due to the necessary international co-ordination required by the operation of radio services.
W. B. Emery's 1964–71 excavations at the Sacred Animal Necropolis, North Saqqara, uncovered large quantities of bovid material, thought at the time to derive from the Mother of Apis Catacomb. This article suggest...
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W. B. Emery's 1964–71 excavations at the Sacred Animal Necropolis, North Saqqara, uncovered large quantities of bovid material, thought at the time to derive from the Mother of Apis Catacomb. This article suggests instead that the material may have come from other (now lost) bovid galleries in the vicinity, the existence of which is attested by the accounts of eighteenth and nineteenth century travellers who visited them. These accounts are compared and the possible positions of the galleries discussed. References to bovid cults at Saqqara attested in texts but not yet located are set out and certain objects from the site reviewed in an attempt to elucidate the character of the material and the identity of the cults represented by the lost galleries.
A well-attested dharmic forbids the eating of "five-nailed" animals, except for a restricted list, which often includes rhinoceroses. Jamison examines passages from dharma texts in which this provision is f...
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A well-attested dharmic forbids the eating of "five-nailed" animals, except for a restricted list, which often includes rhinoceroses. Jamison examines passages from dharma texts in which this provision is found.
This essay explores the relationship between nationalism and politics in Malay society in the aftermath of the Second World War. A new popular politics, ushered in by the Japanese occupation and legitimized by the col...
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This essay explores the relationship between nationalism and politics in Malay society in the aftermath of the Second World War. A new popular politics, ushered in by the Japanese occupation and legitimized by the collapse of the pre-war colonial government, quickly became linked to an egalitarian, anti-colonial nationalism. While this widespread politicization made possible the defeat of Britain's highly unpopular post-war constitutional plan for Malaya, it also threatened the entrenched social order in which access to political power was the prerogative of the royal families and aristocracies of the Malay states. The essay details how aristocratic politicians deflected the social critique of the radical nationalists, branded politics as dangerously divisive, and constructed a narrative of nationalist struggle that reinforced the existing social hierarchy. The result was the definition of a nationalist mainstream which was purged of the influence of egalitarian politics.
Performance monitor (PM) support in on-chip PowerPC(R) microprocessors is used to analyze processor, software, and system attributes for a variety of workloads. The interface to the PowerPC 604(R) microprocessor, whic...
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Performance monitor (PM) support in on-chip PowerPC(R) microprocessors is used to analyze processor, software, and system attributes for a variety of workloads. The interface to the PowerPC 604(R) microprocessor, which we abbreviate ''604,'' has been externalized to end users. We discuss the enhanced PM support available in an upgrade of the 604, the PowerPC 604e(TM) microprocessor, which we abbreviate ''604e.'' We discuss the challenges related to the externalization of the PM support as it relates to other PowerPC processors not derived from the 604 and briefly contrast these PMs with other PMs. We also describe an applicationprogramming interface (API) to the on-chip PM support, its design methodology, and its usage considerations, intended to meet these challenges.
Ten bacterial strains isolated from water and sediment samples taken from geothermal areas of Deception Island, in the South Shetland archipelago, were found to represent six distinct types of thermophilic, Gram-posit...
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Ten bacterial strains isolated from water and sediment samples taken from geothermal areas of Deception Island, in the South Shetland archipelago, were found to represent six distinct types of thermophilic, Gram-positive, aerobic, catalase positive, endospore-forming rods, identified as Bacillus sp. Six representative strains were subjected to routine phenotypic characterization, numerical taxonomic, and chemotaxonomic analyses. Two isolates were identified as thermophilic strains of B. licheniformis and B. megaterium, but the four other strains could not be identified as known species of Bacillus and, hence, may represent new ones.
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