7,170 research outputs found
Estimation of standard liver volume for liver transplantation in the Korean population
No full textThe standard liver volume (LV) of a recipient is estimated in liver transplantation to determine the minimum LV necessary for the recipient. Simple linear formulas of LV estimation were developed for the Japanese and Caucasian populations. The present study examined the applicability of the reported formulas to the Korean population. Liver density (LD) was determined by analyzing 24 healthy livers. Data of liver weight (LW), body weight (BW), body height (BH), body surface area (BSA), and age were obtained from 652 postmortem examination reports (age, 42.4 +/- 16.5 years) showing normal livers. The LV of each subject was estimated by LW/LD and the relationships between LV, BW, BSA, and age were analyzed. LD was 1.04 +/- 0.07 kg/L. LV/BW decreased as age increased in the children but leveled off in the adults; the rate of increase in LV along with BSA in individuals with BSA < 1.2 m(2) appeared less than the corresponding rate in individuals with BSA greater than or equal to 1.2 m(2). The Japanese formula produced underestimates for the Korean population (226.9 +/- 289.4 mL), while the Caucasian formula produced random errors (-30.64 +/- 281.5 mL). A better LV estimation formula was established: LV (mL) = 21.585 x BW (kg)(0.732) x BH (cm)(0.225) (adjusted R-2 = 0.59; SE = 275.8 mL). In conclusion, this study indicates that a nonlinear or piecewise linear model is more desirable than a simple linear model for LV estimation in children and adults, because LV/BW and LV/BSA are not constant with age and BSA.X114749sciescopu
Observation of hc radiative decay hc › ??' and evidence for hc › ??
No full textKolcu, Onur Buğra (Arel Author) --- Makale 69 yazarlıdır.A search for radiative decays of the P-wave spin singlet charmonium resonance hc is performed based on 4.48 × 108 ? events collected with the BESIII detector operating at the BEPCII storage ring. Events of the reaction channels hc › ??' and ?? are observed with a statistical significance of 8.4? and 4.0?, respectively, for the first time. The branching fractions of hc › ??' and hc › ?? are measured to be B(hc › ??' ) = (1.52±0.27±0.29)×10-3 and B(hc › ??) = (4.7±1.5±1.4)×10-4 , respectively, where the first errors are statistical and the second are systematic uncertainties
Cytoprotective effect of light emitting diode (630nm) on melanoblasts: implications for vitiligo treatment
No full textFault section location for distribution network based on linear integer programming
No full textIn the power society, the fault location of the distribution network has always been the focus of scholars. When a fault occurs, it needs to be located quickly and accurately to avoid more significant losses. Due to the wide application of distributed generation in the distribution network, many traditional methods are no longer applicable. Thus, a fast and high fault tolerance method is urgently needed to solve the complex fault location problem of the distribution network. According to the logical and algebraic relationship of fault location, a linear integer programming model for fault section location of the distribution network is established. This paper adopts a new method for solving integer programming, called the fixed-point iterative method. This method has unique advantages in dealing with such large-scale problems and is easily realised through distributed computing, thereby saving time. Finally, through MATLAB experimental simulation, results show that the integer programming method can quickly locate the fault and has high fault tolerance
The political economy of development in China : political agendas and economic realities
Full text linkChina's fourth generation of leaders have re-focused the political agenda away from purely growth considerations to broadly defined developmental issues - primarily driven by concerns about the political implications of growing inequality. However, Shaun Breslin suggests that central leaders may not have the agency to direct economic activity in a way that will allow developmental promises to be achieved
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