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Urinary Estrone Sulfate for Monitoring Pregnancy of Dairy Cows
Yang, C.J.,Wu, L.S.,Tseng, C.M.,Chao, M.J.,Chen, P.C.,Lin, J.H. Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.9
The purpose of this study firstly was conducted to establish a radioimmunoassay (RIA) of estrone sulfate ($E_1S$), secondly to monitor the reproductive status of dairy cows using their urine samples. Urine and blood samples were collected in series within a day from four pregnant Holstein-friesian cows to evaluate the relationship between $E_1S$ levels in blood and urine with or without urinary creatinine basis. The urine was then collected biweekly from three cows in estrous and those artificially inseminated; collection from pregnant cows was made on a monthly basis. Results indicated that sensitivity for the $E_1S$ RIA was 5 pg/tube and the recovery rate was 100%. The daily urinary creatinine concentrations fluctuated within a day, but changes were slighter in midday, whereas the changes of concentrations of $E_1S$ in urine were relatively smaller. The concentrations of serum $E_1S$ during the estrous cycle were undetectable due to the limitation of assay, but the urinary $E_1S$ level could be measured with no obvious changes during the cycle. The urinary $E_1S$ levels increased remarkably around 7.7 to 8.3 ng/ml, 80 to 100 days after pregnancy but the serum $E_1S$ levels did not elevate until 120 to 150 days. The level of $E_1S$ increased gradually during pregnancy and eventually reached its peak before parturition at around 40 ng/ml and finally decreased to its basal level 2 days postparturition. During pregnancy, $E_1S$ concentrations of urine increased earlier than those in blood. The correlation coefficients between urinary and serum $E_1S$ concentration during pregnancy and postparturm were higher than those adjusted with creatinine (creatinine ratio). The concentrations of $E_1S$ in urine could be maintained unchanged for 8 days storing the samples in room temperature, which was extended to 8 days when the samples were pretreated by boiling for 30 minutes or treated with autoclave. In conclusion urinary $E_1S$ concentrations can be used directly for monitoring the pregnant status and fetal viability of dairy cows and can assist accurate confirmation of pregnancy in cows at least 80 to 100 days after insemination much earlier than by serum $E_1S$.
Roh, D.,Chao, J.R.,Kim, D.H.,Yoon, K.H.,Jung, J.H.,Lee, C.H.,Shin, J.H.,Kim, M.J.,Park, C.H.,Lee, J.H. Pergamon Press 2017 Journal of psychosomatic research Vol.102 No.-
Objective: Early prediction of therapeutic outcomes could reduce exposure to ineffective treatments and optimize clinical outcomes. However, none of the known otologic predictors is amenable to therapeutic intervention for idiopathic sudden sensorineural hearing loss (ISSNHL). The aims of this study were to investigate psychological stress as a potential predictor to discriminate outcomes in ISSNHL. Methods: Various psychological measures were conducted including structured interview assessment tools in patients with recently diagnosed ISSNHL before initiating treatment. Using logistic regression analysis, we identified the predictors of treatment response and estimated the probability of treatment response in 50 ISSNHL patients who participated in a clinical trial. Results: Treatment non-responders were significantly differentiated from responders by various psychological problems. The depression subscore of Modified form of Stress Response Inventory (SRI-MF) (p=0.007) and duration of hearing loss (p=0.045) significantly predicted treatment response after controlling other clinical correlates. The same predictors were identified from different treatment response measured using Siegel's criteria. The most discriminative measure for treatment response was SRI-MF depression score with an overall classification accuracy of 73%. Conclusions: We found depressive stress response to be the strong predictor of treatment response in patients with ISSNHL. Our results highlight the potential use of the psychiatric approach as a tool for enhancing therapeutic outcomes. Future stress intervention studies with larger number of ISSNHL patients are needed.
Influence of Plastic Deformation on Recrystallized Microstructure of Fe-Base Ods Alloy
C. Capdevila,I. Toda-Caraballo,G. Pimentel,J. Chao 대한금속·재료학회 2012 METALS AND MATERIALS International Vol.18 No.5
The ferritic oxide dispersion strengthened alloys (ODS) are manufactured using the mechanical alloying process. The development of a coarse grained microstructure during recrystallization has been noted and discussed by a number of authors, but the mechanism of grain control remains uncertain. Recent work has emphasized the large influence of non-uniformities on the development of the recrystallized microstructure. The purpose of the present work was to study, with the help of finite element modeling techniques,the effect of non-uniform plastic strain on recrystallization of Fe-base ODS alloy named MA 957.
Super-Eddington Accretion in the <i>WISE</i>-selected Extremely Luminous Infrared Galaxy W2246−0526
Tsai, Chao-Wei,Eisenhardt, Peter R. M.,Jun, Hyunsung D.,Wu, Jingwen,Assef, Roberto J.,Blain, Andrew W.,Dí,az-Santos, Tanio,Jones, Suzy F.,Stern, Daniel,Wright, Edward L.,Yeh, Sherry C. C. American Astronomical Society 2018 The Astrophysical journal Vol.868 No.1
Spatial assessment of soluble solid contents on apple slices using hyperspectral imaging
Mo, C.,Kim, M.S.,Kim, G.,Lim, J.,Delwiche, S.R.,Chao, K.,Lee, H.,Cho, B.K. Elsevier Science B.V., Amsterdam 2017 BIOSYSTEMS ENGINEERING Vol.159 No.-
<P>A partial least squares regression (PLSR) model to map internal soluble solids content (SSC) of apples using visible/near-infrared (VNIR) hyperspectral imaging was developed. The reflectance spectra of sliced apples were extracted from hyperspectral absorbance images obtained in the 400-1000 nm range. Prediction models for SSC mapping were developed for three different measurement/sampling designs that varied in the number and size of the regions of interest (ROIs) used for apple SSC measurement and spectral averaging. Case 1 used 29 small ROIs per apple, Case II used 9 moderate-size ROIs per apple, and Case III used 5 large ROIs per apple. The optimal pre-treatment of the spectra extracted from the hyperspectral images was investigated to enhance the performance of the prediction models. The coefficients of determination and root mean square errors of the best-performing models were, respectively, 0.802 and +/- 0.674 degrees Brix for Case I, 0.871 and +/- 0.524 degrees Brix for Case II, and 0.876 and +/- 0.514 degrees Brix for Case III. The accuracy of the PLSR models was enhanced by using the spectra and SSC measured/averaged from the fewer but larger areas of the apples rather than from more numerous but smaller areas. PLS images of SSC showed the predicted internal distribution of SSC within the apples. The overall results demonstrate that hyperspectral absorbance imaging techniques may be useful for mapping internal soluble solids content of apples. (C) 2017 IAgrE. Published by Elsevier Ltd. All rights reserved.</P>