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Objective The researchers aimed to investigate the feasibility and efficiency of cultivating ICU talents in nursing profession of higher vocational college.Methods On the basis of the nursing profession in college,the ICU direction was established in the talent cultivation mode of higher vocational college in 2007,2008 and 2009.And the students majored in ICU specialty were cultivated by the joint effort of college and the affiliated hospitals,and cultivate more professional talents of narrower direction.The feedback of teaching,the rate of employment,and the comprehensive evaluation of the graduates' quality from employers were informed by using the self-developed questionnaire.Results The rate of passing Chinese Licensure Examination for Nurse and the rate of employment were 100 percent.The students were satisfied in studying in this specialty,the graduates majored in ICU specialty were employed by the tertiary hospitals,and much higher evaluation were given by the employers.Conclusions To establish the ICU specialty in nursing profession of higher vocational college has benefits for the professionalization and specialization of nursing,which builds a solid ground for cultivating specialized ICU nurses in the hospital.
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Synchrotron radiation X-ray fluorescence analysis technology (SRXRF) can effectively reduce the detection limit for the determination of heavy metal elements, especially suitable for in situ nondestructive analysis of biological samples with low contents. By corn seed germination test, and combining with SRXRF technology, the effects of Pb on corn seed germination and Pb micro-distribution in the corn seed were studied. X-ray absorption near edge structure (XANES ) technique was used to analyze the Pb chemical speciation in different parts of corn seed. The above experiment was taken to understand the absorption and transformation mechanism of Pb by corn seeds. Results showed that germination rate, bud length and root length decreased with increased Pb contents. The analysis of variance showed that P-value of the germination rate, bud length and root elongation of corn seeds which were exposed to different concentration of Pb were 2. 0×10-3, 1. 4×10-4 and 2. 39×10-8, which were all less than 0. 01, therefore there were highly significant differences during these three indicators and the content of Pb. In addition, the inhibition effect on root growth was greater. SRXRF analysis results showed that Pb was mainly enriched in episperm and embryo, which would inhibit embryonic develop into bud and root. The Pb-LⅢ(13035 eV) XANES spectra of all samples include of root, shoot and the different part of seed were the same, they were the same speciation. Linear combination fitting results indicated that the lead phosphate chloride and lead stearate accounted for 74 . 3 %and 24. 2 % respectively, which suggested that the main Pb speciation of corn was lead phosphate chloride which deposited inside of corn, and a few combined with carboxylic to form the organic lead.
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Objective To determine the diagnostic value of the change of different parts of electrocardiogram in treadmill exercise test (TET) for coronary heart disease (CHD).MethodsFrom Jan.2006 to Mar.2011,445 patients with CHD underwent treadmill exercise test and coronary angiography (CAG) in our hospital.We analyzed retrospectively the diagnostic value of the change of different parts of electrocardiogram in TET test.Results ( 1 ) There were 200 cases who had positive results during treadmill exercise test and 150 cases of them had been diagnosed of CHD by coronary angiography;The other 245 cases had negative results during treadmill exercise test and 39 cases of them had been diagnosed as CHD by coronary angiography.The sensitivity and specificity rates of treadmill exercise test in diagnosis of CHD were 79.36％( 150/189 ) and 80.47％ ( 206/256 ) respectively. ( 2 ) Of the 200 positive cases tested by coronary angiography,150 cases were diagnosed of CHD,including 22,58 and 70 cases with limb,chest and combined chest and limb leads positive results respectively.The positive rates for the groups of combined chest and limb leads and limb ST leads were significantly higher than that of the chest leads only group ( x2:6.34,3.93 ; P ＜0.05).(3)R wave amplitude of the CAG negative group after exercise (17.54 ± 2.52)mm was significantly lower than the CAG positive group ( 19.42 ± 3.46 )mm ( t =6.33,P ＜ 0.05 ).( 4 ) For the 200 cases with positive TET,there were no significant statistical difference ( P ＞ 0.05 ) on CAG positive rate between T wave normalization group [ 73.3％ (44/60) ] with and TET positive group [ 75.0％ (105/140) ].But these two groups had significantly higher ( x2:80.21,132.82 ; P ＜ 0.05 ) CAG positive rates than TET negative group [ 15.9％ (39/245) ].ConclusionThe treadmill exercise test is valuable in noninvasive diagnosis of CHD.The severity of CAG can be preliminarily estimated by analyzing the pattern of the change of different parts of electrocardiogram
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5,6 or 7 respectively,the specificity became gradually higher.But the sensitivity and the diagnoses according rate became lower.Conclusion Holter is a simple shortcut useful tool as a non-invasive means of assessing and filtrating OSAS.