Fusion of multiple instances within a modality for biometric verification performance improvement has received considerable attention. In this letter, we present an iris recognition method based on multiinstance fusio...Fusion of multiple instances within a modality for biometric verification performance improvement has received considerable attention. In this letter, we present an iris recognition method based on multiinstance fusion, which combines the left and right irises of an individual at the matching score level. When fusing, a novel fusion strategy using minimax probability machine （MPM） is applied to generate a fused score for the final decision. The experimental results on CASIA and UBIRIS databases show that the proposed method can bring obvious performance improvement compared with the single-instance method. The comparison among different fusion strategies demonstrates the superiority of the fusion strategy based on MPM.展开更多
Asphyxia could increase infant morbidity and mortality. Ante- and intrapartum cardiotocography (CTG) examination could lead to a false positive diagnosis of asphyxia (fetal distress). Troponin I (TnI) is an important ...Asphyxia could increase infant morbidity and mortality. Ante- and intrapartum cardiotocography (CTG) examination could lead to a false positive diagnosis of asphyxia (fetal distress). Troponin I (TnI) is an important factor to the pathogenesis of asphyxia. Cord blood TnI level is increased in infants with fetal cardiac dysfunction, causing pathological CTG and low APGAR score (<7). In the future, TnI is expected to reduce false positive diagnosis of asphyxia caused by CTG. This research was conducted to examine and analyze the differences of cord blood TnI level between normal and asphyxiated infants and to determine the correlation between TnI level and APGAR score. An observational analytical cross sectional study was conducted to a total of 36 patients with asphyxiated infants (18 patients) and normal infants (18 patients). Subjects were selected according to the inclusion and exclusion criteria. Cardiotocography, TnI level, and APGAR score were examined. Umbilical cord blood samples were taken from each subject for the measurement of TnIlevel using a highly sensitive indirect sandwich Enzyme Linked Immunosorbent Assay (ELISA). Statistical analysis was performed by Mann-Whitney and Rank Spearman correlation coefficient test. Cord blood TnI level of asphyxia andnormal groups were 1615.77 ± 1199.98 pg/mL and 819.88 ± 145.82 pg/mLrespectively (p ≤ 0.05). Rank Spearman correlation coefficient between cord blood TnI level and 1’ and 5’ APGAR score was -0.523 (p = 0.026;p ≤ 0.05)and -0.502 respectively (p = 0.034;p ≤ 0.05). There was a statistically significant difference between cord blood TnI level of asphyxia and normal groups;cord blood TnI level of asphyxia group was higher than normal group. Furthermore, negative correlation was observed between cord blood TnI level and APGAR score.展开更多
Information fusion in biometric systems, either multimodal or intramodal fusion, usually provides an improvement in recognition performance. This paper presents an improved score-level fusion scheme called boosted sco...Information fusion in biometric systems, either multimodal or intramodal fusion, usually provides an improvement in recognition performance. This paper presents an improved score-level fusion scheme called boosted score fusion. The proposed framework is a two-stage design where an existing fusion algorithm is adopted at the first stage. At the second stage, the weights obtained by the AdaBoost algorithm are utilized to boost the performance of the previously fused results. The experimental results demonstrate that the performance of several score-level fusion methods can be improved by using the presented method.展开更多
<strong>Background:</strong><span style="font-family:Verdana;"> Terminal QRS distortion and fragmentation (fQRS) with elevated myeloperoxidase (MPO) were linked to poor cardiovascular outco...<strong>Background:</strong><span style="font-family:Verdana;"> Terminal QRS distortion and fragmentation (fQRS) with elevated myeloperoxidase (MPO) were linked to poor cardiovascular outcomes in acute coronary syndrome. We aimed to investigate these parameters in early prediction of coronary artery disease severity based on SYNTAX score and in-hospital adverse events in STEMI patients.</span><span style="font-family:Verdana;"> </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:;" "=""><span style="font-family:Verdana;"> A total of 215 patients with first STEMI admitted for primary PCI were included in the study. They were divided according to the admission ECG into group I with QRS distortion or fQRS, group II with combined QRS distortion and fQRS, and group III without QRS distortion or fQRS. Myeloperoxidase and troponin I levels, ST resolution ratio, left ventricular EF%, and severity of coronary artery lesions using SYNTAX risk score were measured.</span><b><span style="font-family:Verdana;"> Results:</span></b><span style="font-family:Verdana;"> MPO level, SYNTAX score, and in-hospital mortality were higher in group I and II and were higher in group II compared to group I. By regression analysis, QRS distortion, fQRS, and MPO > 412 ng/ml were independent predictors of both CAD severity and in-hospital mortality. DM was an independent predictor of CAD severity (OR: 2.851, P 0.012) while high SYNTAX score was an independent predictor of in-hospital mortality (OR: 6.113, P 0.001). Adding MPO level to any QRS configuration pattern increased predictive value for the detection of CAD severity that was more evident in the combined QRS distortion and fragmentation. </span><b><span style="font-family:Verdana;">Conclusion: </span></b><span style="font-family:Verdana;">Terminal QRS distortion, fragmentation, or combined QRS distortion and fragmentation have a significant value in predicting in-hospital adverse events and CAD severity as assessed by SYNTAX score in association with plasma myeloperoxidase level in STEMI patients. Combined QRS distortion and fragmentation, in spite less common, could be more helpful for early risk stratification and management.</span></span>展开更多
Let X denote a discrete distribution as Poisson, binomial or negative binomial variable. The score confidence interval for the mean of X is obtained based on inverting the hypothesis test and the central limit theorem...Let X denote a discrete distribution as Poisson, binomial or negative binomial variable. The score confidence interval for the mean of X is obtained based on inverting the hypothesis test and the central limit theorem is discussed and recommended widely. But it has sharp downward spikes for small means. This paper proposes to move the score interval left a little (about 0.04 unit), called by moved score confidence interval. Numerical computation and Edgeworth expansion show that the moved score interval is analogous to the score interval completely and behaves better for moderate means;for small means the moved interval raises the infimum of the coverage probability and improves the sharp spikes significantly. Especially, it has unified explicit formulations to compute easily.展开更多
目的:观察Plasma等离子束联合强脉冲光治疗面部烧伤瘢痕的疗效及对瘢痕评分、疼痛程度的影响。方法:本次研究为前瞻性研究,采用随机数字表法将茂名市人民医院2024年3月至2024年8月期间收治的92例面部烧伤瘢痕患者分为对照组(接受强脉冲...目的:观察Plasma等离子束联合强脉冲光治疗面部烧伤瘢痕的疗效及对瘢痕评分、疼痛程度的影响。方法:本次研究为前瞻性研究,采用随机数字表法将茂名市人民医院2024年3月至2024年8月期间收治的92例面部烧伤瘢痕患者分为对照组(接受强脉冲光治疗,46例)和研究组(对照组的基础上接受Plasma等离子束治疗,46例)。对比两组疗效、相关量表评分、瘢痕恢复情况和不良反应发生率。结果:和对照组治疗后相比,研究组的临床总有效率和中文版简易烧伤健康量表(chinese version of the simplified burn health scale, BSHS-B)评分更高,温哥华瘢痕量表(vancouver scar scale, VSS)、视觉模拟疼痛量表(visual analogue scale, VAS)评分和瘢痕厚度、瘢痕血流灌注量更低(P<0.05)。两组不良反应发生率组间对比未见差异(P>0.05)。结论:应用Plasma离子束联合强脉冲光治疗面部烧伤瘢痕患者,可提高临床疗效,改善瘢痕厚度和血流灌注量,缓解瘢痕瘙痒及疼痛程度,安全性较好。展开更多
基金supported by the PhD Programs Foundation of Ministry of Education of China (No.20050698025)the National Natural Science Foundation of China (No.60602025).
文摘Fusion of multiple instances within a modality for biometric verification performance improvement has received considerable attention. In this letter, we present an iris recognition method based on multiinstance fusion, which combines the left and right irises of an individual at the matching score level. When fusing, a novel fusion strategy using minimax probability machine （MPM） is applied to generate a fused score for the final decision. The experimental results on CASIA and UBIRIS databases show that the proposed method can bring obvious performance improvement compared with the single-instance method. The comparison among different fusion strategies demonstrates the superiority of the fusion strategy based on MPM.
文摘Asphyxia could increase infant morbidity and mortality. Ante- and intrapartum cardiotocography (CTG) examination could lead to a false positive diagnosis of asphyxia (fetal distress). Troponin I (TnI) is an important factor to the pathogenesis of asphyxia. Cord blood TnI level is increased in infants with fetal cardiac dysfunction, causing pathological CTG and low APGAR score (<7). In the future, TnI is expected to reduce false positive diagnosis of asphyxia caused by CTG. This research was conducted to examine and analyze the differences of cord blood TnI level between normal and asphyxiated infants and to determine the correlation between TnI level and APGAR score. An observational analytical cross sectional study was conducted to a total of 36 patients with asphyxiated infants (18 patients) and normal infants (18 patients). Subjects were selected according to the inclusion and exclusion criteria. Cardiotocography, TnI level, and APGAR score were examined. Umbilical cord blood samples were taken from each subject for the measurement of TnIlevel using a highly sensitive indirect sandwich Enzyme Linked Immunosorbent Assay (ELISA). Statistical analysis was performed by Mann-Whitney and Rank Spearman correlation coefficient test. Cord blood TnI level of asphyxia andnormal groups were 1615.77 ± 1199.98 pg/mL and 819.88 ± 145.82 pg/mLrespectively (p ≤ 0.05). Rank Spearman correlation coefficient between cord blood TnI level and 1’ and 5’ APGAR score was -0.523 (p = 0.026;p ≤ 0.05)and -0.502 respectively (p = 0.034;p ≤ 0.05). There was a statistically significant difference between cord blood TnI level of asphyxia and normal groups;cord blood TnI level of asphyxia group was higher than normal group. Furthermore, negative correlation was observed between cord blood TnI level and APGAR score.
基金supported by the“MOST”under Grants No.104-2218-E-468-001 and No.104-2221-E-194-050
文摘Information fusion in biometric systems, either multimodal or intramodal fusion, usually provides an improvement in recognition performance. This paper presents an improved score-level fusion scheme called boosted score fusion. The proposed framework is a two-stage design where an existing fusion algorithm is adopted at the first stage. At the second stage, the weights obtained by the AdaBoost algorithm are utilized to boost the performance of the previously fused results. The experimental results demonstrate that the performance of several score-level fusion methods can be improved by using the presented method.
文摘<strong>Background:</strong><span style="font-family:Verdana;"> Terminal QRS distortion and fragmentation (fQRS) with elevated myeloperoxidase (MPO) were linked to poor cardiovascular outcomes in acute coronary syndrome. We aimed to investigate these parameters in early prediction of coronary artery disease severity based on SYNTAX score and in-hospital adverse events in STEMI patients.</span><span style="font-family:Verdana;"> </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:;" "=""><span style="font-family:Verdana;"> A total of 215 patients with first STEMI admitted for primary PCI were included in the study. They were divided according to the admission ECG into group I with QRS distortion or fQRS, group II with combined QRS distortion and fQRS, and group III without QRS distortion or fQRS. Myeloperoxidase and troponin I levels, ST resolution ratio, left ventricular EF%, and severity of coronary artery lesions using SYNTAX risk score were measured.</span><b><span style="font-family:Verdana;"> Results:</span></b><span style="font-family:Verdana;"> MPO level, SYNTAX score, and in-hospital mortality were higher in group I and II and were higher in group II compared to group I. By regression analysis, QRS distortion, fQRS, and MPO > 412 ng/ml were independent predictors of both CAD severity and in-hospital mortality. DM was an independent predictor of CAD severity (OR: 2.851, P 0.012) while high SYNTAX score was an independent predictor of in-hospital mortality (OR: 6.113, P 0.001). Adding MPO level to any QRS configuration pattern increased predictive value for the detection of CAD severity that was more evident in the combined QRS distortion and fragmentation. </span><b><span style="font-family:Verdana;">Conclusion: </span></b><span style="font-family:Verdana;">Terminal QRS distortion, fragmentation, or combined QRS distortion and fragmentation have a significant value in predicting in-hospital adverse events and CAD severity as assessed by SYNTAX score in association with plasma myeloperoxidase level in STEMI patients. Combined QRS distortion and fragmentation, in spite less common, could be more helpful for early risk stratification and management.</span></span>
文摘Let X denote a discrete distribution as Poisson, binomial or negative binomial variable. The score confidence interval for the mean of X is obtained based on inverting the hypothesis test and the central limit theorem is discussed and recommended widely. But it has sharp downward spikes for small means. This paper proposes to move the score interval left a little (about 0.04 unit), called by moved score confidence interval. Numerical computation and Edgeworth expansion show that the moved score interval is analogous to the score interval completely and behaves better for moderate means;for small means the moved interval raises the infimum of the coverage probability and improves the sharp spikes significantly. Especially, it has unified explicit formulations to compute easily.
文摘目的:观察Plasma等离子束联合强脉冲光治疗面部烧伤瘢痕的疗效及对瘢痕评分、疼痛程度的影响。方法:本次研究为前瞻性研究,采用随机数字表法将茂名市人民医院2024年3月至2024年8月期间收治的92例面部烧伤瘢痕患者分为对照组(接受强脉冲光治疗,46例)和研究组(对照组的基础上接受Plasma等离子束治疗,46例)。对比两组疗效、相关量表评分、瘢痕恢复情况和不良反应发生率。结果:和对照组治疗后相比,研究组的临床总有效率和中文版简易烧伤健康量表(chinese version of the simplified burn health scale, BSHS-B)评分更高,温哥华瘢痕量表(vancouver scar scale, VSS)、视觉模拟疼痛量表(visual analogue scale, VAS)评分和瘢痕厚度、瘢痕血流灌注量更低(P<0.05)。两组不良反应发生率组间对比未见差异(P>0.05)。结论:应用Plasma离子束联合强脉冲光治疗面部烧伤瘢痕患者,可提高临床疗效,改善瘢痕厚度和血流灌注量,缓解瘢痕瘙痒及疼痛程度,安全性较好。
