Support vector machine (SVM) has been successfully applied for classification in this paper. This paper discussed the basic principle of the SVM at first, and then SVM classifier with polynomial kernel and the Gaussia...Support vector machine (SVM) has been successfully applied for classification in this paper. This paper discussed the basic principle of the SVM at first, and then SVM classifier with polynomial kernel and the Gaussian radial basis function kernel are choosen to determine pupils who have difficulties in writing. The 10-fold cross-validation method for training and validating is introduced. The aim of this paper is to compare the performance of support vector machine with RBF and polynomial kernel used for classifying pupils with or without handwriting difficulties. Experimental results showed that the performance of SVM with RBF kernel is better than the one with polynomial kernel.展开更多
<strong>Objective: </strong>To understand the appetite and nutritional status of hospitalized patients in a tertiary A general hospital in Guangzhou, Guangdong Province. <strong>Methods:</strong&g...<strong>Objective: </strong>To understand the appetite and nutritional status of hospitalized patients in a tertiary A general hospital in Guangzhou, Guangdong Province. <strong>Methods:</strong> A cross-sectional survey of appetite and nutritional status assessment on inpatients in 44 wards of the hospital was conducted. Taking all “conscious patients hospitalized for more than 48 hours” in the hospital on November 25, 2020 as the survey subjects, the patients’ appetite, dietary intake, nutrition and nutritional support in the past week were investigated. <strong>Results: </strong>A total of 890 cases were investigated, among which 25 cases (2.81%) with missing data were excluded, and thus 865 investigated cases were considered effective. The incidence of nutritional risk was 28.67%, malnutrition 13.29%, external tube feeding nutrition 3.24%, parenteral nutrition 7.05%, and oral nutritional supplement 10.40%. The average score of appetite assessment was (6.99 ± 2.43) points. Among them, cases with appetite assessment scores < 5 points accounted for 15.84%, and 52 patient cases utilized appetite-improving drugs. Among the 137 patients with appetite scores < 5, only 7 patients utilized appetite-improving drugs. The patients’ dietary self-evaluation scores were averagely (4.08 ± 1.16) points, and the daily intake compliance rate of patients was 85.78%. Appetite assessment score was correlated with dietary intake score (<em>r</em> = 0.548) and daily intake compliance rate (<em>r</em> = 0.263) (<em>p</em> < 0.01). The differences in body weight, BMI, grip strength, albumin, and hemoglobin concentration of patients with different appetite states were statistically different (<em>p</em> < 0.01). Appetite was an influencing factor of weight change (<em>β</em> = <span style="white-space:nowrap;">−</span>0.079, <em>p</em> = 0.023). The difference between the appetite assessment scores and the daily intake compliance rates of patients with different nutritional support methods was statistically significant (<em>p</em> < 0.05);the individualized diet group had the highest appetite assessment score (8.57 ± 1.70), while the parenteral nutrition group had the lowest appetite assessment score (4.90 ± 2.99);the individualized diet group had the highest daily intake rate of 100%, followed by the parenteral nutrition group with 96.72%, and the regular diet group had the lowest rate of 84.02%. <strong>Conclusion: </strong>The appetite of hospitalized patients is closely related to nutritional status, and therefore, attention should be paid to the appetite status and nutritional status of hospitalized patients. Inpatients with different nutritional support methods should be given individualized appetite and nutritional interventions.展开更多
目的了解江苏省麻风院村休养员社会支持现况及影响因素,探讨增加社会支持的对策。方法2021年6—12月,采用基本情况调查表和社会支持评定量表(social support rating scale,SSRS),对全省37家麻风院村所有存活休养员进行调查。结果共调查...目的了解江苏省麻风院村休养员社会支持现况及影响因素,探讨增加社会支持的对策。方法2021年6—12月,采用基本情况调查表和社会支持评定量表(social support rating scale,SSRS),对全省37家麻风院村所有存活休养员进行调查。结果共调查麻风休养员560人,平均年龄(75.88±7.20)岁,遗留有畸残占89.64%。社会支持总分为(29.31±8.02),处于中等水平。其中主观支持得分为(16.09±4.68),客观支持得分为(6.18±3.00),对支持利用度得分为(7.03±2.21)。多因素线性回归分析结果显示,职业(β=-3.403)、慢性病(β=2.413)、畸残(β=2.586)是休养员社会支持得分的影响因素(P值均<0.05)。结论江苏省麻风院村休养员社会支持水平较正常人低,建议采取有效干预措施,持续改善麻风院村休养员的社会支持环境。展开更多
文摘Support vector machine (SVM) has been successfully applied for classification in this paper. This paper discussed the basic principle of the SVM at first, and then SVM classifier with polynomial kernel and the Gaussian radial basis function kernel are choosen to determine pupils who have difficulties in writing. The 10-fold cross-validation method for training and validating is introduced. The aim of this paper is to compare the performance of support vector machine with RBF and polynomial kernel used for classifying pupils with or without handwriting difficulties. Experimental results showed that the performance of SVM with RBF kernel is better than the one with polynomial kernel.
文摘<strong>Objective: </strong>To understand the appetite and nutritional status of hospitalized patients in a tertiary A general hospital in Guangzhou, Guangdong Province. <strong>Methods:</strong> A cross-sectional survey of appetite and nutritional status assessment on inpatients in 44 wards of the hospital was conducted. Taking all “conscious patients hospitalized for more than 48 hours” in the hospital on November 25, 2020 as the survey subjects, the patients’ appetite, dietary intake, nutrition and nutritional support in the past week were investigated. <strong>Results: </strong>A total of 890 cases were investigated, among which 25 cases (2.81%) with missing data were excluded, and thus 865 investigated cases were considered effective. The incidence of nutritional risk was 28.67%, malnutrition 13.29%, external tube feeding nutrition 3.24%, parenteral nutrition 7.05%, and oral nutritional supplement 10.40%. The average score of appetite assessment was (6.99 ± 2.43) points. Among them, cases with appetite assessment scores < 5 points accounted for 15.84%, and 52 patient cases utilized appetite-improving drugs. Among the 137 patients with appetite scores < 5, only 7 patients utilized appetite-improving drugs. The patients’ dietary self-evaluation scores were averagely (4.08 ± 1.16) points, and the daily intake compliance rate of patients was 85.78%. Appetite assessment score was correlated with dietary intake score (<em>r</em> = 0.548) and daily intake compliance rate (<em>r</em> = 0.263) (<em>p</em> < 0.01). The differences in body weight, BMI, grip strength, albumin, and hemoglobin concentration of patients with different appetite states were statistically different (<em>p</em> < 0.01). Appetite was an influencing factor of weight change (<em>β</em> = <span style="white-space:nowrap;">−</span>0.079, <em>p</em> = 0.023). The difference between the appetite assessment scores and the daily intake compliance rates of patients with different nutritional support methods was statistically significant (<em>p</em> < 0.05);the individualized diet group had the highest appetite assessment score (8.57 ± 1.70), while the parenteral nutrition group had the lowest appetite assessment score (4.90 ± 2.99);the individualized diet group had the highest daily intake rate of 100%, followed by the parenteral nutrition group with 96.72%, and the regular diet group had the lowest rate of 84.02%. <strong>Conclusion: </strong>The appetite of hospitalized patients is closely related to nutritional status, and therefore, attention should be paid to the appetite status and nutritional status of hospitalized patients. Inpatients with different nutritional support methods should be given individualized appetite and nutritional interventions.
文摘目的了解江苏省麻风院村休养员社会支持现况及影响因素,探讨增加社会支持的对策。方法2021年6—12月,采用基本情况调查表和社会支持评定量表(social support rating scale,SSRS),对全省37家麻风院村所有存活休养员进行调查。结果共调查麻风休养员560人,平均年龄(75.88±7.20)岁,遗留有畸残占89.64%。社会支持总分为(29.31±8.02),处于中等水平。其中主观支持得分为(16.09±4.68),客观支持得分为(6.18±3.00),对支持利用度得分为(7.03±2.21)。多因素线性回归分析结果显示,职业(β=-3.403)、慢性病(β=2.413)、畸残(β=2.586)是休养员社会支持得分的影响因素(P值均<0.05)。结论江苏省麻风院村休养员社会支持水平较正常人低,建议采取有效干预措施,持续改善麻风院村休养员的社会支持环境。
