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[en] We discovered a new tumor marker MA153 which has been identified as Mu-GlcNAc (Mucin1-N-acetyl-Glucosamine). It can react with monoclonal antibody and a related Aptamer to form the Ma695-Mu-GlcNAc-MA153-A sandwich assay. Taking 1 U/mL as cutoff value, the clinical serum detection results indicated that the tumor specificity of Mu-GlcNAc was 95%, the tumor detection sensitivities were 80%, 74%, 68%, 70%, 75%, 50%, 60%, 55%, 70%, 64%, and 60% for breast cancer, pancreatic cancer, liver cancer, lung cancer, esophagus cancer, mouth cancer, colon cancer, bile duct cancer, ovarian cancer, cervix cancer and uterus cancer, respectively. It is concluded that Mu-GlcNAc is a new multi-tumor tumor marker. (authors)
[en] The distribution of thorium on the lunar surface provides the important evidence for lunar evolution history. It is difficult to obtain the distribution of thorium on the lunar surface from CE2-GRS because of noise in the spectrum. The method for smoothing the spectrum is proposed which is based on cluster NASVD. The counting rate map of thorium on the lunar surface is achieved from CE2-GRS. Counting rate map of thorium gamma-rays shows a surface thorium distribution that is in general agreement with other measurement from LP-GRS and SLENE GRS which have better accuracy. It is more effectively to reduce the noise and get the weak information of characteristic peak used the method of cluster NASVD than other traditional methods for smoothing gamma-ray spectrum. (authors)
[en] In order to solve the problem of Chang'e-2(CE2) gamma-ray spectral drift, the method is proposed which is based on correlation theory. Algorithm for realizing the method is introduced in the paper. The validity is verified through changes of Thorium and Potassium characteristic peak position in CE2 gamma-ray spectrum before and after correction. The result has shown that the method based on correlation theory can reduce influence of spectrum drift effectively and the loss of information for characteristic peaks during correction. (authors)
[en] On the basis of data obtained from China Earthquake Administration and China National Statistics Bureau, this paper focuses on the earthquake disaster loss characteristics in 31 provinces or municipalities of China from 1993 to 2016. The trends of direct economic losses, casualties and affected population are also analyzed by constructing two relative earthquake loss indexes (losses/GDP and losses/E) and employing gray correlation theory. Results show that during the 24 years, without taking Wenchuan Ms8.0 earthquake into account, the direct economic losses exhibit a significant increasing trend while losses/GDP also increases but is not significant. Meanwhile, the injuries and affected population both witness a decline trend but the fatalities show the opposite. According to the correlational degree of each year, 8 years (1995, 1996, 1998, 2003, 2008, 2010, 2013 and 2014) suffered losses of equal or above moderate grade. Regionally, the western China suffered the most accumulative direct economic losses and losses/GDP. However, the ranking results of losses/E demonstrate that the central China is the most vulnerable when confronting with the same earthquake. Specifically, Sichuan and Yunnan suffered losses of extra-large grade, Qinghai of large grade and Tibet, Xinjiang and Guangdong of moderate grade. These discoveries are helpful for earthquake mitigation and preparedness as well as earthquake loss evaluation in China.
[en] Nanostructured ZnO–Co and ZnO films with Pt, Cu, and Co as top electrodes, and Pt as bottom electrodes were grown by magnetron sputtering. Both ZnO–Co and ZnO films show bipolar resistive switching characteristics. The resistive switching properties of ZnO films are strongly dependent on the top electrode materials. The effect of top electrodes on resistive switching of ZnO–Co films is weakened due to the dominant roles of Co particles in the films. It is different with ZnO films that the ZnO–Co film shows a forming-free process. The calculation from the classical electromagnetism theory indicates that the existence of Co nanoparticles in the ZnO switching matrix can enhance the local electrical field to some extent, and decrease the operating voltages. So the device with a ZnO–Co film as a switching matrix can significantly reduce power consumption, weaken the dependence of the electrode materials, and optimize the resistive switching performance. (paper)