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Discovery of Eurytrema Eggs in Sediment from a Colonial Period Latrine in Taiwan
Hui-Yuan Yeh,Chieh-fu Jeff Cheng,ChingJung Huang,Xiaoya Zhan,Weng Kin Wong,Piers D. Mitchell 대한기생충학열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.6
In this study we take a closer look at the diseases that afflicted Japanese police officers who were stationed in a remote mountainous region of Taiwan from 1921 to 1944. Samples were taken from the latrine at the Huabanuo police outpost, and analyzed for the eggs of intestinal parasites, using microscopy and ELISA. The eggs of Eurytrema sp., (possibly E. pancreaticum), whipworm and roundworm were shown to be present. True infection with Eurytrema would indicate that the policemen ate uncooked grasshoppers and crickets infected with the parasite. However, false parasitism might also occur if the policemen ate the uncooked intestines of infected cattle, and the Eurytrema eggs passed through the human intestines. These findings provide an insight into the diet and health of the Japanese colonists in Taiwan nearly a century ago.
A Tracking System Using Location Prediction and Dynamic Threshold for Minimizing SMS Delivery
Yuan-Cheng Lai,Jian-Wei Lin,Yi-Hsuan Yeh,Ching-Neng Lai,Hui-Chuan Weng 한국통신학회 2013 Journal of communications and networks Vol.15 No.1
In this paper, a novel method called location-based delivery (LBD), which combines the short message service (SMS) and global position system (GPS), is proposed, and further, a realistic system for tracking a target’s movement is developed. LBD reduces the number of short message transmissions while maintaining the location tracking accuracy within the acceptable range. The proposed approach, LBD, consists of three primary features: Short message format, location prediction, and dynamic threshold. The defined short message format is proprietary. Location prediction is performed by using the current location, moving speed, and bearing of the target to predict its next location. When the distance between the predicted location and the actual location exceeds a certain threshold, the target transmits a short message to the tracker to update its current location. The threshold is dynamically adjusted to maintain the location tracking accuracy and the number of shortmessages on the basis of themoving speed of the target. The experimental results show that LBD, indeed, outperforms other methods because it satisfactorily maintains the location tracking accuracy with relatively fewer messages.
A Tracking System Using Location Prediction and Dynamic Threshold for Minimizing SMS Delivery
Lai, Yuan-Cheng,Lin, Jian-Wei,Yeh, Yi-Hsuan,Lai, Ching-Neng,Weng, Hui-Chuan The Korea Institute of Information and Commucation 2013 Journal of communications and networks Vol.15 No.1
In this paper, a novel method called location-based delivery (LBD), which combines the short message service (SMS) and global position system (GPS), is proposed, and further, a realistic system for tracking a target's movement is developed. LBD reduces the number of short message transmissions while maintaining the location tracking accuracy within the acceptable range. The proposed approach, LBD, consists of three primary features: Short message format, location prediction, and dynamic threshold. The defined short message format is proprietary. Location prediction is performed by using the current location, moving speed, and bearing of the target to predict its next location. When the distance between the predicted location and the actual location exceeds a certain threshold, the target transmits a short message to the tracker to update its current location. The threshold is dynamically adjusted to maintain the location tracking accuracy and the number of short messages on the basis of the moving speed of the target. The experimental results show that LBD, indeed, outperforms other methods because it satisfactorily maintains the location tracking accuracy with relatively fewer messages.
Xiaoya Zhan,Hui-Yuan Yeh,Dong Hoon Shin,Jong-Yil Chai,Min Seo,Piers D. Mitchell 대한기생충학열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.6
As we learn more about parasites in ancient civilizations, data becomes available that can be used to see how infection may change over time. The aim of this study is to assess how common certain intestinal parasites were in China and Korea in the past 2000 years, and make comparisons with prevalence data from the 20th century. This allows us to go on to investigate how and why changes in parasite prevalence may have occurred at different times. Here we show that Chinese liver fluke (Clonorchis sinensis) dropped markedly in prevalence in both Korea and China earlier than did roundworm (Ascaris lumbricoides) and whipworm (Trichuris trichiura). We use historical evidence to determine why this was the case, exploring the role of developing sanitation infrastructure, changing use of human feces as crop fertilizer, development of chemical fertilizers, snail control programs, changing dietary preferences, and governmental public health campaigns during the 20th century.