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초보자 승마운동 시 완충고삐 사용을 통한 말의 스트레스 완화에 관한 연구
정현아 ( Hyun Ah Chung ),이경은 ( Kyung Eun Lee ),김준규 ( Joon Gyu Kim ),도경탁 ( Kyoung-tag Do ),김병선 ( Byung Sun Kim ) 한국축산학회 2022 축산기술과 산업 Vol.9 No.1
During equestrian exercise, communication between riders and horses is very important, and riders’ appropriate signals without any disturbance for the horses’ proper movements are required. Therefore, horses may get different stress depending on the rider’s riding balance, posture, and proficiency. This study was conducted to confirm the difference in the stress of horses between the beginner’s riding and the expert’s riding, additionally, to prove the effectiveness of buffer rein reducing stress even when beginners ride. Average heart rate (HR) was measured for five minutes in stages with a walk, and HR variability (HRV) were measured for three minutes in stages with both rising trot and sitting trot. HRV variables include root mean square of successive differences (RMSSD), standard deviation of normal to normal interval (SDNN), and ratio of low to high frequency components of a continuous series of heartbeats (low-frequency [LF]/high-frequency [HF]). The study involved 6 horses that underwent routine husbandry procedures. The average HR did not show a difference among groups in all exercise stages includes walk, rising trot, and sitting trot. RMSSDs showed lower values for the sitting trot when the beginner rides compared to the expert’s riding (p < 0.05), which means the stress was more increased when beginners ride. On the other hand, when beginners ride using buffer reins, the RMSSD was increased in all exercise stages compared to the case of using regular reins. SDNN was increased when the beginners ride using buffer reins in the rising trot (p < 0.05), which means the stress was more relieved. Ratio of low to high frequency components of a continuous series of heartbeats was not different among groups, but it showed decreased value when beginners use buffer reins rather than regular reins. In this study, it was confirmed that beginners induce more stress on horses than experts during riding exercise and that the use of the buffer reins by beginners more reduces the riding stress of horses compared to when they use regular reins.
반응표면분석을 이용한 데리야끼소스의 최적화에 관한 연구
김현아(Hyun Ah Kim),정현아(Hyeon A Jung),송청락(Chung Rak Song) 한국조리학회 2011 한국조리학회지 Vol.17 No.5
This study attempts to find an optimized amount of soy sauce, sugar and boiling time for the best soy-sauce-based Teriyaki sauce, using the Response Surface Methodology (RSM), The following is the summary of the study, The amount of soy sauce, sugar and boiling time were set as independent variables to study the sensory characteristics of soy sauce, As a result, significant differences in appearance, taste and overall acceptance of soy sauce were observed, In appearance, boiling time was the most effective factor, followed by sugar and soy sauce, The taste was affected most by sugar, followed by boiling time and soy sauce in order, Overall acceptance, ranked in ascending order, is as follows: soy sauce, boiling time and sugar, So based on the study, the best results are: soy sauce 1,182.76 g - 1,210.11 g, sugar 843.97 g - 851.17 g, boiling time 174.49 mins - 181.46 mins, Among them, optimum points are: soy sauce 1,196.44 g, sugar 847.57 g, boiling time 177.98 mins.
펜타미딘으로 치료 받은 후천성 면역 결핍증 환자에서 발생한 저혈당 1예
송기호 ( Kee Ho Song ),황용 ( Yong Hwang ),최홍석 ( Hong Seok Choi ),기현균 ( Hyun Kyun Ki ),정혜숙 ( Hae Suk Cheong ),서정웅 ( Jung Woong Seo ),정현아 ( Hyun Ah Chung ) 대한내과학회 2012 대한내과학회지 Vol.83 No.5
Trimethoprim-sulfamethoxazole (TMX-SMZ) is the initial treatment for Pneumocystis jiroveci pneumonia in human immunodeficiency virus (HIV) patients. About 20% of patients do not complete the TMX-SMZ treatment due to treatment failure or adverse reactions. Pentamidine isethionate has been used for P. jiroveci pneumonia as a second-line regimen. Although hypoglycemia is a common adverse effect of pentamidine, pentamidine-induced hypoglycemia has not been reported in Korea. We present an HIV patient with grand mal seizures caused by pentamidine-induced hypoglycemia who was managed successfully with IV dextrose infusion. Mental changes can occur during pentamidine treatment, but hypoglycemia is often ignored and misdiagnosed as epilepsy or stroke. It can result in seizures, coma, and even death. We should be aware of pentamidine-induced hypoglycemia, which can lead to severe neurologic deficits and diabetes mellitus. (Korean J Med 2012;83:679-682)
김도영 ( Do Young Kim ),황용 ( Yong Hwang ),최홍석 ( Hong Seok Choi ),조영일 ( Young Il Jo ),임소덕 ( So Duk Lim ),손인성 ( In Sung Son ),정현아 ( Hyun Ah Chung ) 대한내과학회 2012 대한내과학회지 Vol.83 No.6
Up to 40% of patients with anti-glomerular basement membrane (GBM) disease, which is a rare autoimmune disorder usually manifesting as rapidly progressive glomerulonephritis (RPGN), are positive for circulating anti-neutrophil cytoplasmic antibody (ANCA). Many previous reports showed poor outcomes in these “double-positive” patients. We report a patient with perinuclear (p)-ANCA positive anti-GBM disease who presented with RPGN and required hemodialysis. Plasmapheresis and steroid and cyclophosphamide therapy were initiated following renal biopsy and resulted in normalization of anti-GBM antibody and p-ANCA titers, recovery of renal function, and discontinuation of hemodialysis. This case suggests that aggressive immunosuppression with plasmapheresis in patients who are p-ANCA positive with anti-GBM disease should be considered, even in those with severe renal dysfunction. (Korean J Med 2012;83:807-812)