BACKGROUND: The polarity and the layer-by-layer coating method which are utilized to improve the membrane surface of optical glasses is a new focus for researching in the world. OBJECTIVE: To prepare a stable hydrophilic anti-fogging coating by surface modification. METHODS: Hydrophilic anti-fogging coatings of complexes of polyacrylic acid (PAA), cationic polyacrylamide (CPAM) and sodium silicate were fabricated by layer-by-layer coating method. Subsequently, the stable multilayer films were obtained by thermal torrefaction. Then the transmittance, hydrophlicity, and hardness were tested. RESULTS AND CONCLUSION: In the wavelength coverage of 200 nm, the transmittance of the anti-fogging coatings was above 92.9%. In the wavelength coverage of 700-800 nm, the transmittance reached 98.1%, suggesting that the membrane had the good transmittance. Water drop dispersed completely after 230 ms when it contacted with the surface of the multilayer films, suggesting that it had the good hydrophilicity. The hardness of stable films structure was 4 H. The layer-by-layer coating method was simple and favorable for preparing the anti-fogging coatings with good product properties including good stability, anti-fogging function and the improved transmittance.

Docetaxel (DXT)is a member of the taxane drug class,which is used to treat breast cancer,lung cancer,gastric cancer,prostate cancer and so on.Docetaxel can be used as a single agent or in combination with other chemotherapeutic drugs.Many side effects of docetaxel have been reported in recent years.New dosage forms are developed to reduce toxicity and increase efficacy.An overview of these novel formulations of docetaxel and clinical progress will be discussed by consulting 43 literatures.

Objective To investigate the clinical application of iodine-enhanced image of dual-source computed tomography (DSCT) in distinguishing benign and malignant thyroid nodules.Methods Thirty patients with thyroid nodules underwent DSCT imaging with dual-source computed tomography.All thyroid nodules were confirmed by operation or biopsy.Iodine concentration in the thyroid nodule and normal thyroid tissue were calculated and not enhanced.A receiver operator characteristic curve in SPSS software was utilized to select critical value of optimum sensitivity and specificity.The data were retrospectively analyzed.Results There were 30 patients with 40 thyroid nodules (17 malignant nodules,23 benign nodules).The range of iodine concentration in malignant nodules was -2.4-0.9 mg/ml(median-0.5 mg/ml),and that in normal thyroid tissue was-0.9-2.2 mg/ml (median 0.7 mg/ml).The range of iodine concentration in benign nodules was 1.5-4.4 mg/ml(median 2.4 mg/ml),and that in normal thyroid tissue was 1.5-4.3 mg/ml (median 2.6 mg/ml).Among them,the iodine concentration in the solid part of benign nodules was significantly higher than that in malignant nodules,the difference was statistically significant(Z=-3.23,P=0.21).When critical value was 0.15 mg/ml,sensitivity was 82.40％,specificity was 81.00％.Conclusion Iodine-enhanced images with DSCT in non-enhanced weighted images may be an implement tool for differential diagnosis of benign and malignant nodules of the thyroid gland.

AIM and METHODS:To investigate the effect of L-arginine -nitric oxide pathway on patients with essential hypertension via hemodynamics and neuroendocrinology. 24 essential hypertension patients were randomly divided into two groups, group I was given L-Arg, and groups Ⅱ was given normal saline as control. Blood pressure, heart rate, heart funtion, nitric oxide, angiotensinⅡ, endothelin, thromboxane A 2 and prostacyline were measure in all patients. RESULTS: In group Ⅰ arterial pressure decreased, heart rate increased, cardial output, systolic volume and eject fraction increased, total peripheral resistance decreased. NO and PGI 2 levels were inceased. But at 80 min , with NO concentration decreased, SBP,DBP were increased, TPR, FT and AngⅡ were also increased. While HR, CO, SV and EF were decreased. However TXA 2 and PGI 2 showed not much change. CONCLUSION: Exogenous L-arginine produced a vasodilatory effect by increasing NO production ,caused the change of other hemodynamic function . It also indirectly changed plasma ET, AngⅡlevels by negative feed-back and suppressed the accumulation of platelet.

Objective To develop an intelligent assist order system for parenteral nutrition and embed it into hospital information system,so as to facilitate rational prescription of parenteral nutrition.Methods Comprehensive database,knowledge base and control system of parenteral nutrition orders were set up based on production rule.An intelligent assist order system for parenteral nutrition was designed and developed.Individual energy demand of patients were calculated automatically and compared with doctors' orders of parenteral nutrition.Cation concentration was calculated automatically and controlled for the stability of all-in-one parenteral nutrition admixture.Results This system achieved successful and fast calculation of individual energy demand,over-standard warning of total energy,the ratios of carbohydrates to lipids and non-protein calories to nitrogen,ion concentration,and liquid volume.It also controlled the cation concentration,thus avoiding demulsification.Conclusions The intelligent assist order system for parenteral nutrition can solve the problems of energy calculation and ensure the stability of all-in-one parenteral nutrition admixture.As a result,it can improve the utilization of parenteral nutrition in hospital.

Objective To summarize the X-ray and CT manifestations of dialysis- related osteoarthropathy. Methods The study consisted of 20 cases with long-term dialysis patients. The X-ray and CT scanning of their shoulder, knee, hip, wrist and cervical vertebrae were performed respectively. The X-ray and CT manifestations of dialysis- related osteoarthropathy were observed. Results The roentgenographic and CT features included:universal osteoporosis(n=20), bone resorption(n=17), bone sclerosis(n=15), calcification(n=19) . Conclusion X-ray and CT are of significance in diagnosing bone resorption and calcification.

Objective To investigate the regularity of chronopharmacology of bruceolic oil emulsion ( BOE) in treating H22 tumor-bearing mice. Methods The KM mice model bearing H22 hepatocellular carcinoma was established. And then the model mice were divided into groups according to the condition of illumination and medicine intervention. After treatment for 10 days, the tumor-growth inhibitory rate, viscera indexes, and hepatic and renal function indexes were observed. Results Tumor mass and ratio of tumor mass to body mass were decreased in medication groups under the normal and disordered illumination. The tumor mass and ratio in mice treated with BOE before dark phase of normal illumination and disordered illumination, and during the dark phase of disordered illumination differed from those of the model group at the corresponding illumination phase (P<0.05) . Under normal illumination, BOE-treated mice at 10 pm of dark phase had lower liver index but higher thymus index than the model group (P < 0.05) . Under disordered illumination, BOE-treated mice at 7 am of dark phase had higher spleen index than the model group ( P < 0.05) . Conclusion BOE exerts certain inhibition of H22 hepatocellular carcinoma under both normal illumination and disordered illumination, and the effect will be better when medication is given in dark phase period.

Objective:To understand the current situation of effective teaching behavior of clinical nursing teachers and analyze it.Methods:A convenient sampling method was used to conduct a questionnaire survey on nursing students and teaching teachers in Tai′an City central hospital and the Second Affiliated Hospital of Shandong First Medical University, using Cui Shasha Chinese version of Nursing Clinical Teacher Effectiveness Inventory as the research tool.Results:The score of the teachers in the "interpersonal relationship" dimension was the highest (6.32±0.89), while the score in the "nursing ability" dimension was the lowest (5.95±0.99). There was no statistically significant difference between college students and undergraduate students in the evaluation of effective teaching behaviors of teachers, while there was statistically significant difference between nursing students (including college students and undergraduate students) and teachers in all dimensions and total scores of the scale ( t values were -4.616--2.250, P<0.05 or 0.01). Teachers and students were more consistent with the 10 items with low scores than the 10 items with high scores (the total number of items was 2 and 5, respectively). Conclusions:The teaching teacher should be able to correctly identify and judge the learning needs of the internship nursing students, so that the teaching effect meets the expectations of the internship nursing students, and should be targeted when teaching internship nursing students of different educational levels as well as focusing on nursing research.

Objective:To systematically evaluate the effects of different umbilical cord time on maternal and fetal outcomes.Methods:Meta analysis was used, CNKI, Wanfang, VIP, PubMed, The Cochrane Library, EBSCO, Web of Science database, etc. were searched. The literatures were screened according to the inclusion and exclusion criteria, and the literature quality was evaluated. Revman 5.2 software was used for data processing and analysis.Results:A total of 9 randomized controlled trials were included. Meta-analysis showed that delayed umbilical cord did not increase postpartum 2,24 h hemorrhage[mean difference ( MD)=-40.69, 95%confidence interval (CI) (-83.05-1.67), P>0.05 and MD=-10.33, 95% CI (-22.47-1.81), P>0.05] and did not prolong the third stage of labor [ MD= 0.32, 95% CI (-0.71-1.35), P>0.05] compared with conventional umbilical cord (early umbilical cord) method. 1,5 min Apgar scores for different neonatal umbilical cord time was not statistically significant[ MD=0.05, 95% CI (-0.02-0.12), P>0.05 and MD=-0.01, 95% CI (-0.04-0.03), P>0.05]. There was no significant difference in neonatal weight [ MD=72.91, 95% CI (-53.98-199.80), P>0.05]. Delayed umbilical cord could improve the newborn's 24 h capillary hemoglobin [ MD=17.69, 95% CI (13.55-21.83), P<0.01] and bilirubin peak [ MD=17.50, 95% CI (11.88-23.12), P<0.01]. Conclusions:Delayed umbilical cord and early umbilical cord did not increase postpartum hemorrhage and prolong the third stage of labor, and had no adverse effects on maternal. The peak levels of capillary hemoglobin and bilirubin in newborns were increased 24 h, but there was no significant difference in neonatal 1 min and 5 min Apgar scores and neonatal weight.