The letter Z is not part of the Vietnamese alphabet, any more than F, J and W. But it is far from... more The letter Z is not part of the Vietnamese alphabet, any more than F, J and W. But it is far from uncommon in language use. It appears in the names of companies that target a popular audience, e.g. Zing for a local competitor to Yahoo. Why is Z, the least used letter of the English alphabet, so trendy in present-day Vietnamese? The evidence reported here suggests that the letter Z constitutes foreign-looking clothing for a typical Vietnamese sound. In Hanoi Vietnamese, historical /ð/, /ʒ/ and /r/ (orthographic D, GI and R) merged to /z/, making the voiced alveolar fricative a highly frequent sound – and a potential identity marker for Hanoian speakers, with Z as a unified written rendering. The results of an automated search through a large corpus of contemporary texts support the conclusions drawn from the qualitative analysis of examples.
Little is known about the prevalence of Staphylococcus aureus nasal colonization and the epidemio... more Little is known about the prevalence of Staphylococcus aureus nasal colonization and the epidemiology of methicillin-susceptible and methicillin-resistant S. aureus (MRSA) among cystic fibrosis (CF) patients and their household members. We sought to determine the epidemiology of S. aureus among children and adolescents with CF and their household members. Three CF centers enrolled case subjects with at least 1 MRSA-positive respiratory tract culture from 2001 to 2006 and control subjects with MRSA-negative cultures. S. aureus isolates from the anterior nares of CF subjects and their household members were assessed for staphylococcal chromosomal cassette (SCC) mec type. Strain similarity was determined by pulsed-field gel electrophoresis. S. aureus nasal colonization occurred in 52.4% (22/42), 27.0% (17/63), and 25.0% (72/288) of case, control, and household participants, respectively. Case subjects and their contacts were more likely to harbor MRSA in their nares and be from a multipatient CF family. Of 31 MRSA strains, 10 (32.3%) were SCCmec type IVa, associated with community-acquisition. Overall, 27.6% of 98 households had > or =2 members colonized with closely related isolates. Household members were equally likely to be colonized with closely related strains of MRSA (20/31, 65%) versus MSSA (38/80, 48%). This study demonstrated that household members of CF children harbor both MSSA and MRSA, including CA-MRSA, and that S. aureus is transmitted within CF households. Carriage of S. aureus by household members of CF children may have implications for infection control and treatment strategies. Future studies should monitor the distribution and virulence of SCCmecA types in patients with CF.
In OCDMA systems, pulse position modulation (PPM) and multi-code modulation (MCM) have been prove... more In OCDMA systems, pulse position modulation (PPM) and multi-code modulation (MCM) have been proven as efficient methods for respectively mitigating multiple access interference (MAI) and dispersion. In this paper, we propose to combine PPM and MCM to create a novel modulation scheme, multi-code pulse position modulation (MCPPM). We then theoretically analyze the performance of the 2-D OCDMA system using MCPPM
The letter Z is not part of the Vietnamese alphabet, any more than F, J and W. But it is far from... more The letter Z is not part of the Vietnamese alphabet, any more than F, J and W. But it is far from uncommon in language use. It appears in the names of companies that target a popular audience, e.g. Zing for a local competitor to Yahoo. Why is Z, the least used letter of the English alphabet, so trendy in present-day Vietnamese? The evidence reported here suggests that the letter Z constitutes foreign-looking clothing for a typical Vietnamese sound. In Hanoi Vietnamese, historical /ð/, /ʒ/ and /r/ (orthographic D, GI and R) merged to /z/, making the voiced alveolar fricative a highly frequent sound – and a potential identity marker for Hanoian speakers, with Z as a unified written rendering. The results of an automated search through a large corpus of contemporary texts support the conclusions drawn from the qualitative analysis of examples.
Little is known about the prevalence of Staphylococcus aureus nasal colonization and the epidemio... more Little is known about the prevalence of Staphylococcus aureus nasal colonization and the epidemiology of methicillin-susceptible and methicillin-resistant S. aureus (MRSA) among cystic fibrosis (CF) patients and their household members. We sought to determine the epidemiology of S. aureus among children and adolescents with CF and their household members. Three CF centers enrolled case subjects with at least 1 MRSA-positive respiratory tract culture from 2001 to 2006 and control subjects with MRSA-negative cultures. S. aureus isolates from the anterior nares of CF subjects and their household members were assessed for staphylococcal chromosomal cassette (SCC) mec type. Strain similarity was determined by pulsed-field gel electrophoresis. S. aureus nasal colonization occurred in 52.4% (22/42), 27.0% (17/63), and 25.0% (72/288) of case, control, and household participants, respectively. Case subjects and their contacts were more likely to harbor MRSA in their nares and be from a multipatient CF family. Of 31 MRSA strains, 10 (32.3%) were SCCmec type IVa, associated with community-acquisition. Overall, 27.6% of 98 households had > or =2 members colonized with closely related isolates. Household members were equally likely to be colonized with closely related strains of MRSA (20/31, 65%) versus MSSA (38/80, 48%). This study demonstrated that household members of CF children harbor both MSSA and MRSA, including CA-MRSA, and that S. aureus is transmitted within CF households. Carriage of S. aureus by household members of CF children may have implications for infection control and treatment strategies. Future studies should monitor the distribution and virulence of SCCmecA types in patients with CF.
In OCDMA systems, pulse position modulation (PPM) and multi-code modulation (MCM) have been prove... more In OCDMA systems, pulse position modulation (PPM) and multi-code modulation (MCM) have been proven as efficient methods for respectively mitigating multiple access interference (MAI) and dispersion. In this paper, we propose to combine PPM and MCM to create a novel modulation scheme, multi-code pulse position modulation (MCPPM). We then theoretically analyze the performance of the 2-D OCDMA system using MCPPM
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Vietnamese by Hien Pham
Papers by Hien Pham