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Ching-Min Kuo,Wei-Jen Liao,Chun-Che Huang,Tsuo-Hung Lan,Ching-Heng Lin,Shun-Ping Wang,Cheng-Hung Lee,Ping-Wing Lui 대한정신약물학회 2020 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.18 No.4
Objective: The relationship of antipsychotics and the risk of refracture in treated patients is unclear. The aim of this study is to evaluate the association between prolonged antipsychotic and the incidences of bone fractures and refractures in schizophrenia. Methods: This is a retrospective nested case-control study using Taiwan National Health Insurance Research Database recorded from 2000 to 2005, with cases followed up to end of 2011. Total of 7,842 schizophrenic patients, 3,955 had developed bone fractures were compared with 3,887 control subjects matched in age, sex, and index date. Antipsychotic drug exposure was classified based on the drug type and medication duration. Conditional logistic regression analyses were performed. Odds ratio (OR) and confidence interval (CI) were calculated. Results: We found (after adjustments) higher risks of developing fractures under continued use of typical (OR = 1.70; 95% CI, 1.51−1.91) or atypical antipsychotics (OR = 1.43; 95% CI, 1.28−1.60) were found. Additionally, continued use typical (OR = 1.84; 95% CI, 1.35−2.50) or atypical antipsychotics (OR = 1.44; 95% CI, 1.06−1.95) was positively associated with refracture risks. Moreover, refractures were associated with continuous use of chlorpromazine (one typical antipsychotics, OR = 2.45; 95% CI, 1.14−5.25), and risperidone (OR = 1.48; 95% CI, 1.01−2.16) or zotepine (OR = 2.15; 95% CI, 1.06−4.36) (two atypical antipsychotics). Conclusion: Higher risks of bone fracture and refracture were found in schizophrenia under prolonged medication with typical or atypical antipsychotics. We therefore recommend that clinicians should pay more attention on bone density monitoring for patients using long-term antipsychotics.
Advanced Imaging of Nanometer-Scale Recorded Bits on Super-Resolution Near-Field Optical Disk
Pei Lin Yang,Din Ping Tsai,Cheng Wei Lin,Chih Ching Hsu,Pei Hsin Chang,Tsung Sheng Kao,Wei Chih Lin 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.1
An advanced imaging technique is demonstrated for fast, non-destructive and high resolution characterizations for nanometer-scale recorded bits on a super-resolution near-field optical disk (super-RENS). For the first time, an array of individual 100 nm recorded marks is imaged and studied by using the conductive-atomic force microscopy (C-AFM) method. Discussions also include comparisons of 300 nm, 200 nm and 100 nm recorded marks on both a super-RENS disk and a commercial DVD disk, and the image results are evidence of the high carrier-to-noise ratio (CNR) value on the super-RENS disk, even though the mark size has been shrunk to less than the diffraction limit.
Assistive Control of a Surgical Robot Based on Bilateral Interacted Force Analysis
Ping-Lang Yen,Shang-Wei Hsu,Hang-Ting Lin,Ching-Heng Wang 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
Interacted force between a robot, human and anatomical object in orthopedic surgery provides crucial information for safe and accurate bone cutting. When the robot plays the role of assisting the surgeon in the whole surgical procedure, the robot is trying to comply with the human intention according to various cutting conditions. The reaction force to the robot from the human is for indicating human intention, whereas the force from the anatomical object reflects the cutting condition. In this paper two impedance indices are defined by these two interacted forces and a surgical robot then decides whether assistive or resistant action is activated so that accuracy and safety of bone cutting can be achieved.
Mitigating SYN flooding Attack and ARP Spoofing in SDN Data Plane
Ting-Yu Lin,Jhen-Ping Wu,Pei-Hsuan Hung,Ching-Hsuan Shao,Yu-Ting Wang,Yun-Zhan Cai,Meng-Hsun Tsai 한국통신학회 2020 한국통신학회 APNOMS Vol.2020 No.09
As the number of network devices increases rapidly, it becomes more and more difficult to defend network attacks. Large-scaled attacks, such as SYN flooding, may lead to heavy burden to the switches as well as the controller in a software defined network (SDN). In this paper, we investigate the SYN flooding and Address Resolution Protocol (ARP) spoofing attacks in SDN, and then propose mechanisms to address these two attacks. We also present a new scheme to detect SYN flooding by using only a few forwarding rules. Moreover, we utilize the Programming Protocol-independent Packet Processors (P4) technique to mitigate the burden of the controller.
APPLICATIONS OF THE HILBERT-HUANG TRANSFORM ON THE NON-STATIONARY ASTRONOMICAL TIME SERIES
HU, CHIN-PING,CHOU, YI,YANG, TING-CHANG,SU, YI-HAO,HSIEH, HUNG-EN,LIN, CHING-PING,CHUANG, PO-SHENG,LIAO, NAI-HUI The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
The development of time-frequency analysis techniques allow astronomers to successfully deal with the non-stationary time series that originate from unstable physical mechanisms. We applied a recently developed time-frequency analysis method, the Hilbert-Huang transform (HHT), to two non-stationary phenomena: the superorbital modulation in the high-mass X-ray binary SMC X-1 and the quasi-periodic oscillation (QPO) of the AGN RE J1034+396. From the analysis of SMC X-1, we obtained a Hilbert spectrum that shows more detailed information in both the time and frequency domains. Then, a phase-resolved analysis of both the spectra and the orbital profiles was presented. From the spectral analysis, we noticed that the iron line production is dominated by different regions of this binary system in different superorbital phases. Furthermore, a pre-eclipse dip lying at orbital phase ~0:6-0:85 was discovered during the superorbital transition state. We further applied the HHT to analyze the QPO of RE J1034+396. From the Hilbert spectrum and the O-C analysis results, we suggest that it is better to divide the evolution of the QPO into three epochs according to their different periodicities. The correlations between the QPO periods and corresponding fluxes were also different in these three epochs. The change in periodicity and the relationships could be interpreted as the change in oscillation mode based on the diskoseismology model.
ON THE COMPLEX VARIABILITY OF THE SUPERORBITAL MODULATION PERIOD OF LMC X-4
HU, CHIN-PING,LIN, CHING-PING,CHOU, YI,YANG, TING-CHANG,SU, YI-HAO,HSIEH, HUNG-EN,CHUANG, PO-SHENG,LIAO, NAI-HUI The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
LMC X-4 is an eclipsing high-mass X-ray binary exhibiting a superorbital modulation with a period of ~ 30:5 days. We present a detailed study of the variations of the superorbital modulation period with a time baseline of ~ 18 years. The period determined in the light curve collected by the Monitor of All-sky X-ray Image (MAXI) significantly deviates from that observed by the All Sky Monitor (ASM) onboard the Rossi X-ray Timing Explorer (RXTE). Using the data collected by RXTE/ASM, MAXI, and the Burst Alert Telescope (BAT) onboard Swift, we found a significant period derivative, $\dot{P}=(2.08{\pm}0.12){\times}10^{-5}$. Furthermore, the O{C residual shows complex short-term variations indicating that the superorbital modulation of LMC X-4 exhibits complicated unstable behaviors. In addition, we used archive data collected by the Proportional Counter Array (PCA) on RXTE to estimate the orbital and spin parameters. The detected pulse frequencies obtained in small time segments were fitted with a circular orbital Doppler shift model. In addition to orbital parameters and spin frequency for each observation, we found a spin frequency derivative of $\dot{v}=(6.482{\pm}0.011){\times}10^{-13}Hz{\cdot}s^{-1}$. More precise orbital and spin parameters will be evaluated by the pulse arrival time delay technique in the future.
Language Reduced Redundancy Tests: A Reexamination of Cloze Test and C-test
( Wen-ying Lin ),( Hsiao-ching Yuan ),( Ho-ping Feng ) 범태평양 응용언어학회 2008 Journal of Pan-Pacific Association of Applied Ling Vol.12 No.1
The purposes of this study are: (1) to investigate whether cloze forms with textdriven deletion method, proposed by Farhady and Keramati (1996), will produce better psychometric properties than standard cloze form; (2) to compare the psychometric properties of cloze test and C-test, both of which belong to the family of language reduced redundancy test; (3) to examine whether different deletion rates lead to difference in test-takers’ performances; and (4) to test whether the assumption of test-takers’ performance invariance across different texts hold for both cloze test and C-test. Based on two authentic texts with different rhetoric modes, three cloze forms with text-driven deletion method, along with one standard cloze and one form of C-test, were constructed and randomly administered to 237 student subjects at one private university in northern Taiwan. Furthermore, each subject was required to take three subtests (from a sample TOEFL test) as criterion measures for empirical validity. The results of the study indicated that neither the three cloze forms nor the C-test was substantially superior to the standard cloze in terms of reliability and validity. In addition, the findings of the study were inconclusive with regard to whether different deletion rates result in different test-takers’ performances. Finally, no strong evidence was found to substantiate the claim that both cloze test and C-test meet the assumption of test-takers’ performance invariance across different texts.
Chlorophyll-Related Compounds Inhibit Cell Adhesion and Inflammation in Human Aortic Cells
Kuan-Hung Lin,Ching-Yun Hsu,Ya-Ping Huang,Jun-You Lai,Wen-Bin Hsieh,Meng-Yuan Huang,Chi-Ming Yang,Pi-Yu Chao 한국식품영양과학회 2013 Journal of medicinal food Vol.16 No.10
The objectives of this study were to investigate the effects of chlorophyll-related compounds (CRCs) and chlorophyll (Chl) a + b on inflammation in human aortic endothelial cells. Adhesion molecule expression and interleukin (IL)-8, nuclear factor (NF)-jB p65 protein, and NF-jB and activator protein (AP)-1 DNA binding were assessed. The effects of CRCs on inflammatory signaling pathways of signal transducers and activators of transcription 3 (STAT3) and mothers against decapentaplegic homolog 4, respectively induced by IL-6 and transforming growth factor (TGF)-b, in human aortic smooth muscle cells cultured in vitro were also investigated. HAECs were pretreated with 10 lM of CRCs, Chl a + b, and aspirin (Asp) for 18 h followed by tumor necrosis factor (TNF)-a (2 ng/mL) for 6 h, and U937 cell adhesion was determined. TNF-a–induced monocyte-endothelial cell adhesion was significantly inhibited by CRCs. Moreover, CRCs and Chl a + b significantly attenuated vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and IL-8 expressions. Treatments also significantly decreased in NF-jB expression, DNA binding, and AP-1 DNA binding by CRCs and Asp. Thus, CRCs exert anti-inflammatory effects through modulation of NF-jB and AP-1 signaling. Ten micromoles of CRCs and Asp upregulated the expression of mothers against decapentaplegic homolog 4 (Drosophila) (SMAD4) in the TGF-b receptor signaling pathway, and SMAD3/4 transcription activity was also increased. Ten micromoles of CRCs were able to potently inhibit STAT3-binding activity by repressing IL-6–induced STAT3 expression. Our results provide a potential mechanism that explains the anti-inflammatory activities of these CRCs.