Subjects: Nursing >> Nursing submitted time 2023-05-12
Abstract： Combination of peginterferon-alpha (PEG-IFN) and ribavirin (RBV) therapy is the current standard of care for chronic hepatitis C. This paper reviewed the studies of drug-related adverse reactions in hepatitis C patients who received PEG-IFN and RBV therapy, in order to increase awareness of medical staff and patients on drug-related adverse reactions, and provide reference for implementation of comprehensive interventions.
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Subjects: Astronomy >> Astrophysical processes submitted time 2020-11-19 Cooperative journals: 《天文研究与技术》
Abstract：目前太阳高分辨图像重建往往采用斑点干涉术和斑点掩模法重建目标的模和相位，由于分组分块数据量大，算法复杂等因素，难以满足实时重建的要求。为了能缓解数据处理的压力，在现有在单组分块数据CPU/GPU混合计算方法的基础上，提出通过多进程将多组分块数据分配到GPU上同时并行处理的方法。实验表明，基于多进程并行加速方法可提高CPU和GPU资源利用效率，使GPU能同时处理多组分块数据，可显著提升图像分块处理的速度，加速比达4.7左右，相关研究可为天文数据并行化处理提供借鉴参考。
Subjects: Astronomy >> Astrophysical processes submitted time 2020-09-03 Cooperative journals: 《天文研究与技术》
Abstract：半高宽法和像运动法是估算大气视宁度的常用方法。这两种方法的估算精度都会受到望远镜跟踪误差，风或机械振动等因素的影响。提高视宁度估算精度在高分辨成像、选址、台站视宁度监测等领域有重要意义。对于半高宽法，用二维高斯函数拟合长曝光点源单星星像并选取合适方向的半高宽估算视宁度，与谱比法对照发现可以有效改善跟踪误差，风或机械振动等因素的影响。对于像运动法，用主成分分析方法找到一系列斑点图重心位置在合适方向上投影的方差，以此估算视宁度，与谱比法对照发现可以有效改善跟踪误差，风或机械振动等因素的影响。
Subjects: Astronomy >> Astrophysical processes submitted time 2020-07-21 Cooperative journals: 《天文研究与技术》
Abstract： 自动气象监测系统是现代天文观测台站必备的辅助系统之一，传统自动气象系统是基于微控制器或PC开发的。微控制器多用于工业控制，无法满足多任务和批量数据的快速处理；PC由于高功耗、高成本及低可移动性无法在野外如选择台址时使用。为了克服上述两种开发方式的缺点，本文采用基于ARM架构的嵌入式系统为抚仙湖NVST开发一套低功耗、低成本、高稳定性的自动气象监测系统。本文介绍了NVST气象站的整体设计，软硬件功能以及调试中遇到的问题及解决方法。
Subjects: Agriculture, Forestry,Livestock & Aquatic Products Science >> Plant Protection submitted time 2018-07-18 Cooperative journals: 《广西植物》
Abstract： Anthocyanin-rich purple sweet potatos have high edible and medicinal value. Anthocyanin biosynthesis is controlled by structural genes and regulatory genes. The bHLH (basic helix-loop-helix protein) transcription factor plays an important role in anthocyanin biosynthesis by regulating multiple structural genes. However, there are no reports about bHLH regulating anthocyanin biosynthesis in sweet potato. In this study, a bHLH gene named IbGL3 was cloned in Ipomoea batatas based on transcriptome data and RT-PCR technology. The full-length cDNA of IbGL3 was 2 120 bp, containing 1 878 bp opening reading frame (ORF), and encoding 625 amino acids. The encoded protein of IbGL3 has a molecular weight of 69.08 kD and the theoretical isoelectric point (pI) of 5.20. The IbGL3 protein was classified as unstable protein instability with index of instability index 43.06, and belonged to hydrophilic protein with grand average of hydropathicity of -0.555. Subcellular localization prediction showed that IbGL3 was most likely to be located in the nucleus, and the nuclear localization signal (PSSKKRKASKT) was located at the C-terminal. Signal peptide analysis showed that IbGL3 protein had no signal peptide and was not a secretory protein. Transmembrane domain analysis showed that IbGL3 protein had no transmembrane domain. The IbGL3 protein had highly conserved MIR motif, bHLH domain and ACT domain, shared high identities and similar domains with bHLH proteins involved in anthocyanin biosynthesis from other plants. Phylogenetic analysis showed that and IbGL3 was clustered in the IIIf bHLH subgroup together with other anthocyanin-related bHLH proteins. The expression of IbGL3 in the storage root of different sweet potato varieties was detected by quantitative polymerase chain reaction (qPCR). The results indicated that IbGL3 was mainly expressed in purple-fleshed sweet potato, followed by light purple-fleshed sweet potato and weakly expressed in white-fleshed sweet potato, and its expression was positively related to the accumulation of anthocyanin Ipomoea batatas. The results showed IbGL3 may be involved in regulating anthocyanin biosynthesis in Ipomoea batatas. The results will provide assistance and guidance to further understand the function and molecular mechanism of IbGL3 in the biosynthesis of anthocyanins in sweet potato, and lay the foundation for genetic improvement of anthocyanin in sweet potato.
Subjects: Materials Science >> Materials Science (General) submitted time 2016-11-09 Cooperative journals: 《中国腐蚀与防护学报》
Abstract：交流杂散电流主要来源于临近铺设的高压输电线以及交流电气化铁路，形成交流腐蚀，从而对埋地钢质管道安全运行带来危害。目前，国内外对于交流杂散电流研究、评价远远落后于直流杂散电流，交流电流密度检测工序复杂。通过实验研究了不同参数对交流电流密度的影响，建立了交流电流密度与破损面积、土壤电阻率、管地电位以及防腐层电阻率数学表达式，从而间接获取交流电流密度，简化检测工序，提高效率，并研究了交流电流密度对腐蚀速率的影响。通过CDEGS软件研究了并行长度、电流等级、距离、土壤电阻率等参数对交流干扰沿管道的分布规律，从而验证室内实验的可信度，为交流杂散电流危害性评价提供了一定的依据。
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