Since 1997, the largest epidemic of highly pathogenic avian influenza (H5N1) ever recorded has ca... more Since 1997, the largest epidemic of highly pathogenic avian influenza (H5N1) ever recorded has caused 172 human and several billion bird deaths. Recently administered questionnaires determined that live poultry exposures have declined by approximately 63% in Hong Kong since 2004 and that, in Vietnam, domestic backyard exposures to poultry are likely more important than retail exposures.
IEEE Transactions on Knowledge and Data Engineering, 2006
Index TermsData compaction and compression, textual databases, indexing methods, file organizati... more Index TermsData compaction and compression, textual databases, indexing methods, file organization, compression, inverted index, binary code, text retrieval system, text searching, Web searching. æ 1 INTRODUCTION UNCOMPRESSED, the inverted index for a ...
We examine index representation techniques for document-based inverted files, and present a mecha... more We examine index representation techniques for document-based inverted files, and present a mechanism for compressing them using word-aligned binary codes. The new approach allows extremely fast decoding of inverted lists during query processing, while providing compression rates better than other high-throughput representations. Results are given for several large text collections in support of these claims, both for compression effectiveness and query efficiency.
Antipyretics reduce the prolonged, high fever characteristic of typhoid fever. The benefits of no... more Antipyretics reduce the prolonged, high fever characteristic of typhoid fever. The benefits of nonsteroidal drugs in this role have not been quantified. There have been concerns about the safety of antipyretics in typhoid. In a double blind randomized study, 80 Vietnamese children with uncomplicated typhoid fever were randomized to receive identical syrup preparations of ibuprofen (10 mg/kg) or paracetamol (12 mg/kg) every 6 h until 36 h after defervescence. Children with a nalidixic acid-susceptible (Na) isolate of Salmonella typhi were treated with ofloxacin (15 mg/kg/day) for 3 days and those with a nalidixic acid-resistant (Na) isolate were treated for 7 days. S. typhi was isolated from 36 of 40 children randomized to ibuprofen (11 isolates Na) and 37 of 40 randomized to paracetamol (13 isolates Na). The median (range) fever clearance time (hours) was shorter in the ibuprofen group than the paracetamol group (68, 4 to 260 vs. 104, 12 to 404; P = 0.055) as was the area under the temperature time curve above 37 degree C (74, 0 to 237 vs. 127, 0 to 573; P = 0.013). The differences occurred predominantly in the children infected with a NaS. typhi whose infections responded more slowly to antibiotic treatment. There were no major side effects associated with the use of either drug. There were no differences between the two treatment arms in the concentrations of circulating interleukin-6 and tumor necrosis factor alpha during the course of treatment. The antipyretic effect of ibuprofen is superior to that of paracetamol in children with typhoid fever, particularly those with prolonged fever. Both antipyretics appeared to be safe.
An information retrieval system employs a similarity heuristic to estimate the probability that d... more An information retrieval system employs a similarity heuristic to estimate the probability that documents and queries match each other. The heuristic is usually formulated in the context of a collection, so that the relationship between each document and the collection that contains it affects the scoring used to provide the ranked set of answers in response to a query. In
An approach tö recognize automatically sleep spindles by using short-term spectral analysis is de... more An approach tö recognize automatically sleep spindles by using short-term spectral analysis is described. The EEG signal is sampled and stored on a magnetic tape in digital form. The data is analyzed on a PDP-8 computer, and the result can be either displayed on an oscilloscope or stored on another magnetic tape for further analysis. The program is written in conversational form and provides the operator with the ability to change any parameter in the program quickly by a simple command on the Teletype keyboard.
Since 1997, the largest epidemic of highly pathogenic avian influenza (H5N1) ever recorded has ca... more Since 1997, the largest epidemic of highly pathogenic avian influenza (H5N1) ever recorded has caused 172 human and several billion bird deaths. Recently administered questionnaires determined that live poultry exposures have declined by approximately 63% in Hong Kong since 2004 and that, in Vietnam, domestic backyard exposures to poultry are likely more important than retail exposures.
IEEE Transactions on Knowledge and Data Engineering, 2006
Index TermsData compaction and compression, textual databases, indexing methods, file organizati... more Index TermsData compaction and compression, textual databases, indexing methods, file organization, compression, inverted index, binary code, text retrieval system, text searching, Web searching. æ 1 INTRODUCTION UNCOMPRESSED, the inverted index for a ...
We examine index representation techniques for document-based inverted files, and present a mecha... more We examine index representation techniques for document-based inverted files, and present a mechanism for compressing them using word-aligned binary codes. The new approach allows extremely fast decoding of inverted lists during query processing, while providing compression rates better than other high-throughput representations. Results are given for several large text collections in support of these claims, both for compression effectiveness and query efficiency.
Antipyretics reduce the prolonged, high fever characteristic of typhoid fever. The benefits of no... more Antipyretics reduce the prolonged, high fever characteristic of typhoid fever. The benefits of nonsteroidal drugs in this role have not been quantified. There have been concerns about the safety of antipyretics in typhoid. In a double blind randomized study, 80 Vietnamese children with uncomplicated typhoid fever were randomized to receive identical syrup preparations of ibuprofen (10 mg/kg) or paracetamol (12 mg/kg) every 6 h until 36 h after defervescence. Children with a nalidixic acid-susceptible (Na) isolate of Salmonella typhi were treated with ofloxacin (15 mg/kg/day) for 3 days and those with a nalidixic acid-resistant (Na) isolate were treated for 7 days. S. typhi was isolated from 36 of 40 children randomized to ibuprofen (11 isolates Na) and 37 of 40 randomized to paracetamol (13 isolates Na). The median (range) fever clearance time (hours) was shorter in the ibuprofen group than the paracetamol group (68, 4 to 260 vs. 104, 12 to 404; P = 0.055) as was the area under the temperature time curve above 37 degree C (74, 0 to 237 vs. 127, 0 to 573; P = 0.013). The differences occurred predominantly in the children infected with a NaS. typhi whose infections responded more slowly to antibiotic treatment. There were no major side effects associated with the use of either drug. There were no differences between the two treatment arms in the concentrations of circulating interleukin-6 and tumor necrosis factor alpha during the course of treatment. The antipyretic effect of ibuprofen is superior to that of paracetamol in children with typhoid fever, particularly those with prolonged fever. Both antipyretics appeared to be safe.
An information retrieval system employs a similarity heuristic to estimate the probability that d... more An information retrieval system employs a similarity heuristic to estimate the probability that documents and queries match each other. The heuristic is usually formulated in the context of a collection, so that the relationship between each document and the collection that contains it affects the scoring used to provide the ranked set of answers in response to a query. In
An approach tö recognize automatically sleep spindles by using short-term spectral analysis is de... more An approach tö recognize automatically sleep spindles by using short-term spectral analysis is described. The EEG signal is sampled and stored on a magnetic tape in digital form. The data is analyzed on a PDP-8 computer, and the result can be either displayed on an oscilloscope or stored on another magnetic tape for further analysis. The program is written in conversational form and provides the operator with the ability to change any parameter in the program quickly by a simple command on the Teletype keyboard.
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