In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radi...In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radiation sensor according to the thickness of the PMMA block by irradiation of gamma rays emitted from a Co-60 source. And the result was compared with the value calculated from the formula of Lambert-Beer.展开更多
Intussusception is rarely observed in adults. Adult cases account for only 5% of all cases of intussusceptions and almost 1%-5% of bowel obstruction cases. The etiology, presentation and management of intussusception ...Intussusception is rarely observed in adults. Adult cases account for only 5% of all cases of intussusceptions and almost 1%-5% of bowel obstruction cases. The etiology, presentation and management of intussusception in adults are different from those in children. The clinical presentation in adults often includes nonspecific signs and symptoms, thereby complicating differential diagnosis from other causes of abdominal pain. We report a 29-year-old Asian woman who visited our emergency department with complaints of fever associated with epigastric pain since one day. Abdominal computed tomography demonstrated ileocolic intussusception, and laparoscopic small bowel luminal mass resection was performed. Histopathology report confirmed a 3.5 cm × 2.7 cm submucosal lipoma in the terminal ileum. Sufficient vigilance and appropriate investigations are important for prompt diagnosis and surgical referral of patients to enable favorable outcomes. A computed tomography scan can be a helpful modality in establishing a diagnosis.展开更多
AIM:To identify the epidemiologic characteristics of sportsand recreation-related eye injuries in a large metropolitan city and investigate risk factors associated with visual impairment.METHODS:We performed a multice...AIM:To identify the epidemiologic characteristics of sportsand recreation-related eye injuries in a large metropolitan city and investigate risk factors associated with visual impairment.METHODS:We performed a multicenter prospective observational study on patients using the regional eye injury registry data.This study included patients with sportsand recreation-related eye injury in four tertiary teaching hospitals in Daegu,Republic of Korea,from August 2016 to July 2018.The primary outcome was visual impairment at the first hospital visit.Distributions of sex,age,place,and causative materials were analyzed according to causative activities.To examine the association between causative activities and visual impairment,a Logistic regression analysis was used.RESULTS:Of the 349 sports-and recreation-related eye injuries,soccer was the most common causative activity,with 21.8%(n=76).Sports-and recreation-related eye injuries occurred mainly in teenagers,individuals in their 20 s,and men.Badminton and soccer were significantly associated with visual impairment at the first hospital visit compared with combat sports[(adjusted odds ratio(AOR),5.18;95%confidence interval(CI),1.67-16.09 for badminton and AOR,3.87;95%CI,1.36-10.99 for soccer].CONCLUSION:Intervention efforts such as deployment of protective eyewear in sports facilities and schools and promotion of wearing protective eyewear during these activities in teenagers and individuals in their 20 s are mandatory.展开更多
文摘In this study, we fabricated a sapphire based fiber-optic radiation sensor. To evaluate the fiber- optic radiation sensor, we measured the spectrum and intensity of the luminescence generated from the fiber-optic radiation sensor according to the thickness of the PMMA block by irradiation of gamma rays emitted from a Co-60 source. And the result was compared with the value calculated from the formula of Lambert-Beer.
文摘Intussusception is rarely observed in adults. Adult cases account for only 5% of all cases of intussusceptions and almost 1%-5% of bowel obstruction cases. The etiology, presentation and management of intussusception in adults are different from those in children. The clinical presentation in adults often includes nonspecific signs and symptoms, thereby complicating differential diagnosis from other causes of abdominal pain. We report a 29-year-old Asian woman who visited our emergency department with complaints of fever associated with epigastric pain since one day. Abdominal computed tomography demonstrated ileocolic intussusception, and laparoscopic small bowel luminal mass resection was performed. Histopathology report confirmed a 3.5 cm × 2.7 cm submucosal lipoma in the terminal ileum. Sufficient vigilance and appropriate investigations are important for prompt diagnosis and surgical referral of patients to enable favorable outcomes. A computed tomography scan can be a helpful modality in establishing a diagnosis.
基金Supported by the Korea Centers for Disease Control and Prevention(No.2016E3300500)。
文摘AIM:To identify the epidemiologic characteristics of sportsand recreation-related eye injuries in a large metropolitan city and investigate risk factors associated with visual impairment.METHODS:We performed a multicenter prospective observational study on patients using the regional eye injury registry data.This study included patients with sportsand recreation-related eye injury in four tertiary teaching hospitals in Daegu,Republic of Korea,from August 2016 to July 2018.The primary outcome was visual impairment at the first hospital visit.Distributions of sex,age,place,and causative materials were analyzed according to causative activities.To examine the association between causative activities and visual impairment,a Logistic regression analysis was used.RESULTS:Of the 349 sports-and recreation-related eye injuries,soccer was the most common causative activity,with 21.8%(n=76).Sports-and recreation-related eye injuries occurred mainly in teenagers,individuals in their 20 s,and men.Badminton and soccer were significantly associated with visual impairment at the first hospital visit compared with combat sports[(adjusted odds ratio(AOR),5.18;95%confidence interval(CI),1.67-16.09 for badminton and AOR,3.87;95%CI,1.36-10.99 for soccer].CONCLUSION:Intervention efforts such as deployment of protective eyewear in sports facilities and schools and promotion of wearing protective eyewear during these activities in teenagers and individuals in their 20 s are mandatory.
