Effect of the trans - theoretical model of behavior based WeChat health education on self - management among patients with maintenance hemodialysis

目的 探讨基于行为转变的微信干预模式对维持性血液透析患者自我管理的研究效果.方法 选取60例维持性血液透析患者实施微信健康教育,健康教育方案是基于行为转变理论制订,包括血液透析专业知识、自我管理、科学饮食等方面内容.实施干预12周后,对患者的生化指标、自我管理水平及自我效能感得分进行干预前后比较.结果 干预后患者自我管理得分较干预前有显著提升,表现在情绪处理和自我护理方面,差异有统计学意义（P＜0.01）.干预后患者的生化指标白蛋白、血钾、肌酐、尿素氮的差异有统计学意义（P＜0.01）.患者的自我效能感提升.结论 基于行为转变理论的微信健康教育可以改善维持性血液透析患者的生化指标,提高自我管理水平,帮助患者了解血液透析知识以及提升自信心,为今后改善血液透析患者自我管理提供一种新的干预模式.Objective To explore the effect of WeChat intervention model based on the trans-theoretical model of behavior（TTMB） on self-management of maintenance hemodialysis patients.Methods Sixty cases of maintenance hemodialysis patients were given WeChat health education,and the health education program was based on TTMB,ineluding hemodialysis expertise,self-management,scientific diet and so on.After 12 weeks＇intervention,the biochemical index,the self-management level and the self-efficacy score of patients were compared before and after intervention.Results The scores of self-management of patients after intervention were significantly higher than those before intervention,which were expressed in terms of emotional management and self-care,and the difference was statistically significant （P 〈 0.01）.After the intervention,the biochemical indexes diffences of albumin,serum potassium,creatinine and urea nitrogen of patients were statistically significant （P 〈 0.01）.The self-efficacy of patients were elevated.Conclusion The TTMB WeChat health education can improve the biochemical indexes and the level of self-management of maintenance hemodialysis patients,and it helps patients to understand hemodialysis knowledge as well as improve self-confident,to provide a new intervention model for improving self-management of hemodialysis patients in the future.国家自然科学基金（71403232

SBA-15接枝有机胺官能团催化剂的制备、表征及在醇醛缩合反应中的应用

采用后接枝法对介孔分子筛载体SBA-15接枝伯胺基（PA）、仲胺基（SA）、叔胺基（TA）和哌嗪基（PP）4种有机胺官能团制得4种催化剂,用XRD、BET、TG、SEM和元素分析仪对所制备的固体碱催化剂进行表征,以糠醛、丙酮为生物油模型化合物研究了4种催化剂的醇醛缩合反应性能,考察了接枝环境、接枝剂官能团、溶剂及温度对糠醛转化率及糠叉丙酮（ FA）与二糠叉丙酮（ F2 A）选择性的影响。结果表明,XRD及SEM图谱显示后接枝法胺基化改性SBA-15保留了载体高度有序的孔道结构,BET分析结果表明接枝后SBA-15比表面积从829 m^2/g下降至292 m^2/g（哌嗪基SBA-15）,经TG与元素分析计算得到N的接枝量为0.6-1.0 mmol/g；采用N2保护条件进行接枝反应可提高催化剂的催化性能,使用质子型溶剂、升高反应温度均有利于提高糠醛转化率和目标产物选择性,4种碱性官能团中伯胺基具有最高的催化活性和产物选择性。 N2保护环境下以H2 O为溶剂,糠醛和丙酮在 PA/SBA-15催化下80℃经8 h反应后,糠醛转化率为82.6%,FA和F2 A选择性分别为41.4%、8.7%

HF/CrO_3溶液对AlGaAs的选择性湿法刻蚀应用于楔型结构的制备

利用动态掩膜腐蚀技术，研究了HF/CrO_3腐蚀液对各种不同组分的Al_xGa_(1-x)As (x = 0.3, 0.5, 0.65)的腐蚀速率及腐蚀表面形貌。随着HF(48wt%)/CrO_3(33wt%)的体积比由0.01变化到0.138，相应的腐蚀液对Al_(0.8)Ga_(0.2)As/Al_(0.3)Ga_(0.7)As的选择性由179降到8.6；通过调节腐蚀液的选择性，在Al_(0.3)Ga_(0.7)As外延层上制备出了倾角从0.32°到6.61°的各种斜面。当HF(48wt%)/CrO_3(33wt%)的体积比为0.028时，Al组分分别为0.3、0.5和0.65时，相应的腐蚀表面的均方根粗糙度为1.8、9.1和19.3nm。另外，还分析了腐蚀机理与腐蚀表面形貌之间的关系

汉中大佛洞宇宙成因核素~(26)Al/~(10)Be埋藏年龄

汉中天坑群是在我国湿润热带-亚热带岩溶地貌区北界首次发现的岩溶地质景观,已查明区内发育岩溶洞穴160余处,对研究中国南北方乃至全球古地理环境及气候变化具有重要科学价值。目前该区域地貌演化、岩溶洞穴发育研究刚刚起步,尚没有该岩溶区年代学研究成果报道。本文尝试运用加速器质谱仪(AMS)宇宙成因核素~(26)Al/~(10)Be埋藏年龄测试技术,对汉中南郑岩溶洞穴大佛洞内次生沉积石英砾石进行年龄测定,获得~(26)Al/~(10)Be埋藏年龄为(1.07&plusmn;0.71)Ma,初步限定了汉中岩溶洞穴大佛洞的发育时期;同时获得大佛洞石英砾石样品在埋藏前该流域侵蚀速率为(156.5&plusmn;73.4) m&middot;Ma~(-1)。</p

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel