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Cervid satellite DNA and karyotypic evolution of Indian muntjac
Yueh-Chun Li,Chyi-Chyang Lin 한국유전학회 2012 Genes & Genomics Vol.34 No.1
Five satellite DNA families (designated as satellite I-V) have been identified in the Cervidae so far. Among those, satellite I, II and IV are centromere specific. Satellite I and II are shared by large number of deer species, where satellite IV is highly conserved among several deer species examined. Satellite III was initially thought to be roe deer specific but later identified in Chinese water deer as well. SatelliteV is Y-chromosome specific for several Asian deer species examined but also found in the pericentric region of Indian muntjac chromosome 3 and in X chromosome of Chinese water deer. The observation of interstitial hybridization sites on Indian muntjac chromosomes with satellite DNA I probe generated from Chinese muntjac provides the first molecular evidence supporting the tandem fusion theory that 2n=6♀/7♂of Indian muntjac karyotype could derive from an ancestral Chinese muntjac-like species with 2n=46. Interspecies chromosome painting study and the maximum number of interstitial hybridization detected with satellite I and satellite II DNA probes lend support to the hypothesis that the Indian muntjac karyotype could evolve directly from an ancestral Chinese water deer-like species with 2n=70. Such hypothesis is further substantiated by the finding of satellite V signals presented in specific chromosome regions between the Chinese water deer and the Indian muntjac chromosomes.
Yueh-Ming Tai,Chih-Yuan Ko,Chen-Cheng Lin,Yu-Yue Wan,Jing-Yi Chung,Yia-Ping Liu 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.2
Objective Central 5-HT1A receptor is involved in the modulation of sensorimotor gating function. However, its precise role is not clearly defined in developmentally social deprived (isolation rearing, IR) rats featured with impaired sensorimotor gating ability. We therefore aimed to examine the effects of 5HT1A activation on acoustic startle response (ASR) and prepulse inhibition (PPI) in IR rats in a condition of compromised presynaptic 5-HT functions. Methods Social control (SOC) and IR rats received an intracerebraoventricular (ICV) injection of 5-HT depletor, 5,7-DHT. Seven days later rats entered a protocol of 8-OH-DPAT, a 5-HT1A agonist, in which locomotor activity, ASR and PPI and their tissue levels of 5-HT were measured. Results Our results found that both IR and 5,7-DHT decreased the tissue concentration of 5-HT. IR-induced hyperactivity and gating impairment were unaffected by 5-HT depletion. 8-OH-DPAT strengthened the ASR in IR but not SOC rats and the drug-reduced PPI could be adjusted by 5,7-DHT pretreatment. 8-OH-DPAT at 100 μg/kg enhanced PPI in 5-HT-depleted SOC rats. However for IR rats, 8-OH-DPAT strengthened PPI in sham rats but downgraded it in depletion condition. Conclusion The integrity of central 5-HT system is important to 5-HT1A-modulated sensorimotor gating in isolation-reared rats.
GPU-Accelerated Single Image Depth Estimation with Color-Filtered Aperture
( Yueh-teng Hsu ),( Chun-chieh Chen ),( Shu-ming Tseng ) 한국인터넷정보학회 2014 KSII Transactions on Internet and Information Syst Vol.8 No.3
There are two major ways to implement depth estimation, multiple image depth estimation and single image depth estimation, respectively. The former has a high hardware cost because it uses multiple cameras but it has a simple software algorithm. Conversely, the latter has a low hardware cost but the software algorithm is complex. One of the recent trends in this field is to make a system compact, or even portable, and to simplify the optical elements to be attached to the conventional camera. In this paper, we present an implementation of depth estimation with a single image using a graphics processing unit (GPU) in a desktop PC, and achieve real-time application via our evolutional algorithm and parallel processing technique, employing a compute shader. The methods greatly accelerate the compute-intensive implementation of depth estimation with a single view image from 0.003 frames per second (fps) (implemented in MATLAB) to 53 fps, which is almost twice the real-time standard of 30 fps. In the previous literature, to the best of our knowledge, no paper discusses the optimization of depth estimation using a single image, and the frame rate of our final result is better than that of previous studies using multiple images, whose frame rate is about 20fps.
Inside a Postpartum Nursing Center: Tradition and Change
Yueh-Chen Yeh,Winsome St John,Lorraine Venturato 한국간호과학회 2016 Asian Nursing Research Vol.10 No.2
Purpose: The purpose of this study was to explore how traditional ritual practices are incorporated into the context of contemporary healthcare. Methods: An ethnographic study was conducted, using observations and interviews with 27 first-time mothers and 3 nurses at a postpartum nursing center in Taipei, Taiwan. Results: Nursing routines, policies and care provision at the center affected the way traditional ritual practices were conducted. New mothers in this study constructed their everyday activities at the center by incorporating and modifying the ritual practices inside and outside the postpartum nursing center setting. Conclusions: Social changes have an influence on traditional postpartum ritual practices so a postpartum nursing center becomes a choice for postpartum women. Thus, health care professionals should value their own functions and roles at the postpartum nursing center since the new mothers regard them as the primary support resource to help them recover from giving birth. Therefore, they need to re-examine their practices from the postpartum women's perspective to provide better support and sensitive care to postpartum women and their families.
Detecting Jump Activity on Ultra-High Frequency VIX Data
Yueh-Neng Lin,Jeremy C. Goh 한국재무학회 2011 한국재무학회 학술대회 Vol.2011 No.09
The study indicates that a continuous component and infinite activity jumps are present in the ultra-high frequency VIX data, especially when taking into account the impact of market microstructure noise on various statistics. The degree of jump activity is in the range from 1.71 to 1.95, indicating a very high degree of jump activity. The total quadratic variation can be split into a continuous component of 29% and a jump component of 71%, which by construction is attributable to small and large jumps. The study further examines two jump-diffusion models in the Lévy process class using front-month VIX futures data from Q2 2006 to Q3 2009. Using one-day lagged structural parameters, modeling finite-activity jumps is important for pricing. But for simple trading strategies, incorporating infinite-activity jumps yields the best performance with an average absolute error of one-and-a-half to two volatility points each day.