Publications by authors named "Yu-Jen Tsai"

Background: It is probable that humans can acquire and non- infections via domestic animals. The prevalence and risk factors of infections of species in canines of Taipei city were therefore analysed in this study.

Materials And Methods: A total of 95 canine faecal samples were collected from different animal shelters and hospitals in Taipei city.

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We employed first-principles calculations to investigate the effect of structural disorders on the Li storage capacity of graphene nanomaterials. Our calculations first revealed that the Li storage capacity of a graphene monolayer does not necessarily increase with the size of a C vacancy created but is largely determined by the local geometry of the defect sites. Our electronic structure analysis further revealed that the enhanced Li storage capacity by the C vacancy defect is mainly attributed to the increased number of the unoccupied electronic density of states lying near the Fermi level, which can be substantially increased by raising the number of bond rotations within the vacancy sites.

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This study developed a lightweight air composition measuring equipment (ACME) mounted in unmanned aerial vehicles (UAVs) to measure the vertical distribution characteristics of PM chemical species in the micro-scale urban environment for the first time. 212 samples collected from 0 to 350 m above ground level were analyzed for water-soluble ions. The concentrations of most ions on the above ground level were higher than that on the ground surface during the sampling period.

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To investigate the characteristics and contributions of the sources of fine particulate matter with a size of up to 2.5 μm (PM2.5) during the period when pollution events could easily occur in Taoyuan aerotropolis, Taiwan, this study conducted sampling at three-day intervals from September 2014 to January 2015.

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Article Synopsis
  • - Toxoplasma gondii is a parasite affecting humans and wildlife, and a study in Taiwan looked at antibodies in 394 wild birds from 37 species, finding a seroprevalence of 23.35%.
  • - Birds of prey and those in aquatic environments had the highest infection rates, with adult birds showing greater seroprevalence compared to juveniles; clinical abnormalities were linked to infection.
  • - The findings indicate T. gondii is widely spread in Taiwan, raising concerns about its zoonotic potential and the need for further research on its impact on wild birds.
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Infection rate, reaction to light, and hair follicle apoptosis are examined in the dogmite, Demodex canis Leydig (Prostigmata: Demodicidae), in dogs from the northern area of Taiwan. An analysis of relevant samples revealed 7.2% (73/1013) prevalence of D.

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Article Synopsis
  • A study conducted in Taipei City from October 2005 to September 2006 tested 1,412 stray dogs for antibodies to the parasite Toxoplasma gondii.
  • Out of the tested dogs, 20.1% showed positive results for T. gondii antibodies, with no significant difference based on the dogs' sex or density.
  • The highest prevalence of antibodies was found in dogs located in the eastern part of the city.
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  • A study examined blood samples from 395 feeder pigs in Taiwan between May 2003 and April 2004 to check for antibodies to Toxoplasma gondii.
  • The latex agglutination test revealed that 10.1% of the pigs had antibodies with a titer of 1:32 or higher.
  • This indicates a significant prevalence of Toxoplasma gondii infection among pigs meant for human consumption in Taiwan.
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Starting from January 2004 to December 2004, 665 blood serum samples from pigeons (Columba livia) were collected from 44 pigeonaries in 11 counties and 20 regions in Taiwan. These samples were examined by latex agglutination test (LAT) for antibodies to Toxoplasma gondii by using the LAT. Antibodies were found in 4.

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A serological survey of Toxoplasma gondii infection among slaughtered pigs in the largest slaughterhouse located in Taoyuan County of northwestern Taiwan was conducted using the latex agglutination (LA) test during 1998. The overall seroprevalence of T. gondii infection was 28.

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