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윤혜온(Hye On Yoon),(Richard J. Reeder) 한국광물학회 2002 광물과 암석 (J.Miner.Soc.Korea) Vol.15 No.2
The sorption of Cd^2+ on calcite was studied in aqueous solutions of several electrolytes. The Cd^2+ concentration, 10^-8 M, was kept well below saturation with respect to CdCO_3(s). Sorption behavior of Cd^2+ in different ionic strengths of NaClO_4 solutions shows that sorption is independent of ionic strength. This result suggests that Cd^2+ sorption on calcite surface is of a specific nature, and adsorption is controlled by an inner-sphere type of surface complex. Two stages in the sorption behavior could be identified: an initial rapid uptake, followed by slower uptake reaching a maximum steady state by 145 hrs. No evidence was observed for surface precipitation, although it can not be entirely ruled out. Desorption of Cd^2+ from the calcite surface after resuspension into Cd-free solution is initially very rapid, but depends partly on the previous sorption history. Desorption behavior of Cd^2+ show that an initial rapid desorption followed either by slow uptake reaching a maximum, as in the adsorption experiments, or slowing desorption to reach a steady state minimum. This irreversible behavior of Cd^2+ sorption and desorption may act as one of the controls for regulating the mobility of dissolved Cd^2+ in natural aqueous systems. Calculated adsorption partition coefficients suggest that overall sorption and desorption process in the concentration range are controlled by a single mechanism.
김혜련,김은희,이건주 安東大學校 農業科學技術硏究所 1996 農業科學技術 硏究論文集 Vol.3 No.-
안동지역 종합볍원 한 개소의 병원대기질에서 분리한 100균주중 용혈성 세균 21균주의 특성을 조사였다. 21균주의 용혈성균주중 Gram 양성인 균주가 16균주, Gram 음성인 균주가 5균주로 나타났다. 용혈성 21균주 중에서 α-용혈성은 13균주, β-용혈성은 8균쥬로 나타났다. Gram 양성 α-용혈성 균주 14, 73, 97번은 Streptococcus로 22, 45, 66, 72, 85, 92번은 Streptococcus로 동정되었고, 100번은 Enterococcus로 동정되었다. Gram 양성 β-용혈성 균주 2, 4, 38번은 Streptococcus로 34, 37번은 Staphylococcus로 동정되었고, 80번은 Enterococcus로 동정되었다. Gram 음성 α-용혈성 균주 88, 98번은 Moraxella로 99번은 Serratia로 동정되었다. Gram 음성 β-용혈성 균주 27, 40번은 Moraxella로 동정되었다. Gram 양성 α-용혈성 균주 22, 66, 73, 14, 45, 92,번은 공시항생제에 대해서 O-2가지 항생제에 대해서 내성을 나타내고, 72, 85, 88, 97, 98, 99, 100번의 7균주는 3종이상의 항생제에 대해서 다중내성을 나타냈다. Gram 양성 β-용혈성 균주 중 Streptococcus, Staphlococcus, Enterococcus인 2, 4, 37, 38, 34, 80번은 O-2 항생제에 대한 내성을 가진 것으로 나타났다. Gram 음성 α-용혈성의 Moraxella, Serratia인 88, 98, 99번은 항생제에 대해서 다약제 내성을 나타냈다. Gram 음성 β-용혈성인 Moraxella인 27, 40번은 다중내성균주로 나타났다. 21 hemolytic bacteria among 100 strains were isolated from the air of a hospital in Andong. Of 21 strains, 16 strains belonged to Gram's positive, 5 strains belonged to Gram's negative. 13 strains were α-hemolysis, and 8 strains were β-hemolysis. Of 10 strains of Gram positive and α-hemolysis, No-14, 73, 97 were identified Streptococcus species, No-22, 45, 66, 72, 85, 92 were identified Streptococcus species, No-100 were identified Enterococcus species. Of 6 strains of Gram's positive and β-hemolysis, No-2, 4, 38 were identified Streptococcus species, No-34, 37 were identified Streptococcus species. No-80 were identified Enterococcus species. Of 3 strains of Gram's negative, α-hemolysis, No-88, 98 were identified Moraxella species, No-99 were identified Serratia species, Of 2 strains of Gram negative, β-hemolysis, No-27, 40 were identified Moraxella species. Of 6 Streptococcus, one strain (No-97) showed definite mutidrug resistance. Of 7 staphylococcus, two strain (No-72, 92) showed definite multidrug resistance. Enterococcus strain (No-100), Serratia sp.(No-99) and Moraxella(27, 40, 88, 98) showed definite mutidrug resistance.
임부의 연령에 따른 보완대체요법에 관한 인식 태도 경험 비교 연구
김연진,김지연,노경민,신혜리,유예지,이지민,장희조,정아인,최소정,강숙정,이향연,민혜영 이화여자대학교 간호과학대학 2016 이화간호학회지 Vol.- No.50
Purpose: This study aims to test if the age of pregnant women affects the perception, experience, and attitude towards complementary alternative therapy (CAT), by investigating the perception, experience, and attitude of pregnant women under the age of 35, and above 35 (Advanced Maternal Age). The study will 1) find the general characteristics of pregnant women under and over the age of 35 2) compare the perception, behavior, and experience of pregnant women under and over the age of 35, and 3) find the comparison of the perception, behavior, and experience according to the general characteristics of pregnant women under and over the age of 35. Method: The subjects of this study are composed of 44 women under the age of 35 and 44 women above the age of 35, totaling 88 pregnant women visiting midwiferies, obstetrics and gynecology, and baby fairs in Seoul and Gyeong-Gi area. Data for this study was collected from November 28, 2015 to January 6, 2016 for 40 days. The collected data analyzed mean, standard deviation, t test, ANOVA, and chi-square by using SPSS 23.0. Result Results show that there is a significant difference in the perception, attitude, and experience of the two-sample groups in the use of CAT. The question of “what is most necessary when applying CAT in a hospital clinical environment” for the perception criteria came out with the results of t=9.980, p<.05. For the attitude, results showed that the answers of pregnant women under the age of 35 displayed a more positive attitude towards CAT. (t=2.421, p<.05) Lastly, in the experience section, pregnant women under the age of 35 showed more CAT use than the other sample group. Conclusion Results have shown that there is a difference in the perception, behavior, and experience between the two sample groups. Therefore further research on the efficacy and the adverse effects of CAT needs to be done.
Role of the Duodenum in the Pathogenesis of Functional Dyspepsia: A Paradigm Shift
( Hye-kyung Jung ),( Nicholas J Talley ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2018 Journal of Neurogastroenterology and Motility (JNM Vol.24 No.3
Functional dyspepsia (FD) is a common disorder characterized by chronic epigastric pain or burning, or bothersome postprandial fullness or early satiation, without a definitive organic cause. The pathogenesis of FD is likely heterogeneous. Classically, motor disorders, visceral hypersensitivity, and brain-gut interactions have been implicated in the pathophysiology of FD, but recently an important role for chronic low-grade inflammation and infection in FD has been reported and confirmed. Duodenal low-grade inflammation is frequently observed in FD in those with and without documented previous gastroenteritis. Duodenal eosinophils and in some cases mast cells may together or separately play a key role, and immune activation (eg, circulating homing small intestinal T cells) has been observed in FD. Low-grade intestinal inflammation in patients with FD may provoke impairment in motor-sensory abnormalities along the gastrointestinal neural axis. Among FD patients, the risk of developing dyspeptic symptoms after a bout of gastroenteritis is 2.54 (95% CI, 1.76-3.65) at more than 6 months after acute gastroenteritis. Gut host and microbial interactions are likely important, and emerging data demonstrate both quantitative and qualitative changes of duodenal mucosal and fecal microbiota in FD. Food antigens (eg, wheat proteins) may also play a role in inducing duodenal inflammation and dyspepsia. While causation is not established, the hypothesis that FD is a disorder of microscopic small intestinal inflammation in a major subset is gaining acceptance, opening the possibility of novel treatment approaches that may be able to alter the natural history of the disorder. (J Neurogastroenterol Motil 2018;24:345-354)
( Hye Kyung Jung ),( Rok Seon Choung ),( Nicholas J. Talley ) 대한소화관운동학회 2010 Journal of Neurogastroenterology and Motility (JNM Vol.16 No.1
Gastroesophageal reflux disease (GERD) and sleep disturbances are both common health problems. There is a significant association between disturbed sleep and GERD, and this may be bidirectional. Sleep disorders may induce gastrointestinal (GI) disturbances, while GI symptoms also may provoke or worsen sleep derangements. Reflux of gastric acid is a Less frequent event during sleep, however, acid clearance mechanisms (including swallowing, salivation and primary esophageal motility) are im -paired during sleep resulting in prolongation of acid contact time. Nighttime reflux can Lead to sleep disturbance and sleep disturbance may further aggravate GERD by prolonged acid contact time and heightened sensory perception. This may facilitate the occurrence of complicated GERD and decreased quality of Life. However, the interplay between sleep problems and GERD is complex, and there are still relatively Limited data on this issue. Further investigation of sleep-related GERD may identify common pathophysiological themes and new therapeutic targets.(J Neurogastroenterol Motil 2010;16:22-29)