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Madiha,Zhenji Jin,Jia-Qi LI,Changqing Yang 한국병원약사회 2016 병원약사회지 Vol.33 No.4
Purpose : Many developed countries have already accepted the indispensable role of clinical pharmacist (CP) in health care system. In past few years, Ministry of Health in China has also worked efficiently to regularize and implement clinical pharmacy services (CPSs). In our study, we opted to access the perception, satisfaction and expectation of patients towards the services provided by CP in hospitals in China. Method : The study was conducted in 10 general hospitals located in 8 different cities in China. Questionnaire was composed of four main parts: 1) Demographics of patients, 2) General awareness about CP, 3) Response regarding CP’s professional capabilities, 4) Satisfaction and expectations regarding different CPSs. The chi-test was performed to examine the statistical significance of association between independent variables and dependent variables. Results : Out of 350 distributed questionnaires, 289 were retrieved giving a response rate of 82%. Most of the respondents know about clinical pharmacist and 39.79% had experienced CPSs before. 75% believed that clinical pharmacist is a drug expert, whereas mostly all agreed that CP is an important member of health care team and should be encouraged to participate in patient therapy. More than 75% of respondents perceive that CP can improve quality and safety of treatment. Among those who had previously experienced CPSs, more than 75% showed satisfaction with CP providing individualized patient care, participating in ward rounds, taking medication history, providing drug information and counseling. And approximately 80% of the remaining, who never experienced, expects CP to execute these tasks except for performing physical examination. Conclusion : Most people in China understand, accept and encourage the role of CP in health care. As patients who experienced CPSs were less, it triggers the need of hiring more clinical pharmacist and allowing them to perform additional interactive roles, so that effective CPSs can be delivered to masses.
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Cheng Chen,Taotao Ding,Zhiqiang Qi,Wei Zhang,Jun Zhang,Juan Xu,Jingwen Chen,Jiangnan Dai,Changqing Chen 대한금속·재료학회 2018 ELECTRONIC MATERIALS LETTERS Vol.14 No.4
The periodically ordered ZnO nanorod (NR) arrays have been successfully synthesized via a hydrothermal approach on thesilicon substrates by templating of the TiO2ring deriving from the polystyrene (PS) nanosphere monolayer colloidal crystals(MCC). With the inverted MCC mask, sol–gel-derived ZnO seeds could serve as the periodic nucleation positions for thesite-specific growth of ZnO NRs. The large-scale patterned arrays of single ZnO NR with good side-orientation can be readilyproduced. According to the experimental results, the as-integrated ZnO NR arrays showed an excellent crystal quality andoptical property, very suitable for optoelectronic applications such as stimulated emitters and ZnO photonic crystal devices.
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Influence of Polyurethane Polymer on the Strength and Mechanical Behavior of Sand-root Composite
Jin Liu,Zhihao Chen,Zhaojun Zeng,Debi Prasanna Kanungo,Fan Bu,Yuxia Bai,Changqing Qi,Wei Qian 한국섬유공학회 2020 Fibers and polymers Vol.21 No.4
Vegetation has good application in slope stabilization, but its beneficial effects on reinforcing topsoil are generallylimited by the soil properties it was cultivated in. This study aims at evaluating the strength improvements of sand-rootcomposite by treating with polyurethane polymer and hence investigating the mechanism of polymer-root-soil interactions. Vegetation roots were selected and mixed with dry sand and polymer solution to prepare remolded specimens. A series ofexperimental tests were then performed at different percentages of root content (0, 0.4, 0.8, 1.2, and 1.6 % by weight of drysand) and polymer content (1, 2, and 4 % by weight of dry sand) to evaluate the shear parameters and unconfinedcompressive strength (UCS). The combined mechanism was studied by scanning electron microscopy (SEM) images. Theresults showed that the strengthening effect has greater efficiency with higher polymer content. Through varying contents ofvegetation root, it was found that low root content induced an undesirable weakening effect on the strength of the treated soil. However, this situation was somewhat improved with the increase in root content. The good flexibility of polymers not onlypromote the capacity of soil to energy absorption, but also impart good ductility to soil. The presence of polymers greatlystrengthens soil stability due to its special network structure, by which the improved shear resistance at the root-soil interfaceprovides sufficient anchorage effect for the tensile strength of roots to be fully mobilized. Overall, the synergistic effect ofroot reinforcement and polymer treatment has the potential for its use in soil stabilization.
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