http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
다운증후군유아의 운동발달과 트레드밀트레이닝 및 걸음 보조기의 중재효
김석진,강유석,김영덕 서울대학교 스포츠과학연구소 2009 스포츠과학리뷰 Vol.3 No.1
Down Syndrome is a representative hereditary disability which accompanies mental retardation, communication difficulties and motor development delay. In particular, the motor development delay that begins in infancy brings forth negative effects in various developmental domains such as emotional, social and cognitive areas as well as interfering with various aspects in everyday life. Therefore many researchers have tried to minimize such development delay in Down Syndrome by developing various early intervention programs and shown continuous attempts to prove its positive effects. The treadmill or foot orthoses intervention methods introduced in this study are being applied in America or Europe to infants with Down Syndrome in order to minimize their motor development delay. It is reported that treadmill training helps infants with Down Syndrome in movements related to balance such as standing or walking, and foot orthoses improves balance in ankles and motor skills when walking, as well as increase steady posture. For future studies, there is a need for researchers to discover the cause of motor development delay and abnormal development patterns in infants with Down Syndrome and to study the effects of such motor development delay on other developmental areas. Also, currently in Korea there is relatively insufficient development and supply of early intervention programs for infants with disabilities as well as studies regarding its effects. Therefore we need to develop early intervention programs according to the characteristics of each disability and evaluate the effects through experience. For this, we need to make the parents of infants with disabilities aware of the need for early intervention programs related to physical activity and its effects. 다운증후군은 정신지체와 의사소통의 곤란, 그리고 운동발달 지연이 동반되는 대표적인 유전적 장애영역 중 하나이다. 특히, 영유아기에서 시작되는 운동발달 지연은 이후의 다양한 발달영역 즉, 심동적, 사회적, 인지적 영역에 부정적인 영향을 미쳐 일상생활을 비롯한 다양한 영역에서의 수행에 곤란을 초래하게 된다. 따라서 많은 연구자들은 이러한 다운증후군의 발달 지체를 최소화하기 위해 다양한 조기중재 프로그램을 개발하고 그 효과를 증명하는 시도를 진행해 왔다. 본 연구에서 소개하고 있는 트레드밀이나 걸음보조기 중재방법은 미국이나 유럽에서 다운증후군유아의 운동발달지체를 최소화하기 위해 유아기부터 적용되는 방법이다. 트레드밀 트레이닝은 다운증후군유아의 서기와 걷기 등 주로 균형 및 보행에 도움을 주는 것으로 나타났으며, 걸음보조기는 보행 시 발목의 균형과 운동 기능을 향상시키고, 자세의 안정성을 높이는 것으로 보고되고 있다. 향후 연구자들에게는 다운증후군유아의 운동발달 지연과 비정상적인 발달 패턴을 유발하는 요인이나 그러한 운동발달 지연이 다른 발달 영역에 미치는 영향에 대해 알아보는 좀 더 포괄적인 연구가 요구된다. 또한 국내에서는 현재 장애유아를 위한 조기 중재프로그램의 개발과 보급, 그리고 효과 규명에 상대적으로 소홀한 실정이다. 따라서 장애유형별 특징을 고려한 조기 중재프로그램을 개발하고, 효과를 경험적으로 검토해 보는 시도가 필요하다. 이를 위해, 장애유아의 부모들에게 신체활동 관련 조기 중재프로그램의 필요성과 효과에 대한 올바른 인식을 전파하는 작업이 요구된다고 하겠다.
Yoo, Gil-Ho,Kim, Deok-Hyun,Yoo, Jin,Yang, Jong-Ho,Kim, Sang-Woo,Park, Ki-Do,Kim, Min-Tae,Woo, Sun-Hee,Chung, Keun-Yook 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.6
The impact of 1 pound of nitrous oxide ($N_2O$) on warming the atmosphere is almost 310 times that of 1 pound of carbon dioxide. Agricultural soil management is the largest source of $N_2O$ emissions, accounting for about 73% of total $N_2O$ emissions. This study was conducted to evaluate the nitrous oxide emission in the cultivation of soybean during the first year of No-tillage (NT) and Conventional-tillage (CT) practices, under the various conditions such as different kinds of fertilizers, soil temperature, and moisture level. In the experiment, we set CT and NT treatments into 4 different groups - control treatments (no fertilization), green manure treatments, chemical fertilizer treatments and organic manure treatments. In the case of chemical fertilizer treatments, $N_2O$ emission of NT treatment was 7.78 to 22.59% lower than CT treatment. In organic manure treatment, $N_2O$ emission of NT treatment was 6.62% higher than CT treatment in August. But In July and September, $N_2O$ emission of NT treatment was 9.50% 28.38% lower than CT treatment, respectively. Soil temperature was correlated with $N_2O$ emission positively. In the future, continued long-term research on influence of various environmental factors on the generation of $N_2O$ and the economic value of no-till farming is required.
( Deok-won Kim ),( Ji-su Park ),( Eun-ji Oh ),( Jin Yoo ),( Deok-hyeon Kim ),( Keun-yook Chung ) 한국공업화학회 2022 공업화학 Vol.33 No.6
The removal efficiencies of nutrients (N and P) and heavy metals (Cu and Ni) by Rhodobacter blasticus and R. blasticus attached to polysulfone carriers, alginate carriers, PVA carriers, and PVA + zeolite carriers in synthetic wastewater were compared. In the comparison of the nutrient removal efficiency based on varying concentrations (100, 200, 500, and 1000 mg/L), R. blasticus + polysulfone carrier treatment showed removal efficiencies of 98.9~99.84% for N and 96.92~99.21% for P. The R. blasticus + alginate carrier treatment showed removal efficiencies of 88.04~97.1% for N and 90.33~97.13% for P. The R. blasticus + PVA carrier treatment showed removal efficiencies of 18.53~44.25% for N and 14.93~43.63% for P. The R. blasticus + PVA + zeolite carrier treatment showed removal efficiencies of 26.65~64.33% for N and 23.44~64.05% for P. In addition, at the minimum inhibitory concentration of heavy metals, R. blasticus (dead cells) + polysulfone carrier treatment showed removal efficiencies of 7.77% for Cu and 12.19% for Ni. Rhodobacter blasticus (dead cells) + alginate carrier treatment showed removal efficiencies of 25.83% for Cu and 31.12% for Ni.
( Jin Yoo ),( Eun-ji Oh ),( Ji-su Park ),( Deok-won Kim ),( Jin-hyeok Moon ),( Deok-hyun Kim ),( Daniel Obrist ),( Keun-yook Chung ) 한국공업화학회 2023 공업화학 Vol.34 No.6
The purpose of this study was to determine the inhibitory effect of heavy metals [Cd(II), Ni(II), and Zn(II)] on the growth of Rhodobacter species (Rhodobacter blasticus, Rhodobacter sphaeroides, and Rhodobacter capsulatus) and their potential use for Cd(II), Ni(II), and Zn(II) bioremoval from liquid media. The presence of toxic heavy metals prolonged the lag phase in growth and reduced biomass growth for all three Rhodobacter species at concentrations of Cd, Ni, and Zn above 10 mg/L. However, all three Rhodobacter species also had a relatively high specific growth rate against each toxic heavy metal stress test for concentrations below 20 mg/L and possessed a potential bioaccumulation ability. The removal efficiency by all strains was highest for Cd(II), followed by Ni(II), and lowest for Zn(II), with the removal efficiency of Cd(II) by Rhodobacter species being 66% or more. Among the three strains, R. blasticus showed a higher removal efficiency of Cd(II) and Ni(II) than R. capsulatus and R. sphaeroides. Results also suggest that the bio-removal processes of toxic heavy metal ions by Rhodobacter species involve both bioaccumulation (intracellular uptake) and biosorption (surface binding).