Journal of the korean academy of Pediatric Dentistry
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v.26
no.2
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pp.262-274
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1999
Several alternatives for increasing the fluoride concentration in the mouth, such as water fluoridation, ingestion of fluoride supplements, fluoride paste, fluoride mouthrinse, application of fluoride gel are available. There is an impressive body of evidence that the topically deliverd fluorides are clinically effective in inhibiting the progression of dental caries. Recent studies on the cariostatic action of fluoride have indicated the importance of fluoride in the fluid environment of the teeth. The fluoride levels in unstimulated whole saliva can be considered indicative of F in the aqueous phase available for interaction with the tooth surface at a given time. The retention of F in the mouth after topical fluoride treatment is considered to be an important factor in the clinical efficacy of F. The aim of this study was to determine the elevation and clearance of fluoride in whole saliv after the following topical flouride treatments using HMDS-diffusion technique and fluoride ion electrode. The obtained results were as follow: 1. Average salivary fluoride concentration in the unstimulated whole saliva was $0.0152ppm{\pm}0.0091ppm$. Unstimulated salivary flow rate was between 0.34-0.36ml/min and there was no statistically significant difference among the groups(p>0.05). 2. Except for the immediate time after treatment, fluoride levels followed as APF gel>neutral gel>F-rinse>F-paste. There was no statistical difference between the salivary F concentration of F-paste group and that of control group after 2 hours. In case of F-rinse group, after 3 hours the concentration had dropped to baseline value. But there was statistically significant difference among the F concentraion of F gel groups and that of control group(p<0.05). 3. The mean $AUC_{0-120min}$ values were followed as neutral gel>APF gel>F-rinse>F-paste, and the values of the two former groups were significantly higher than those of the two latter groups(p<0.05).
One of the most common feelings in everyday life is anger. Anger plays an important role in activating emotional energy and increasing intolerance when confronted with hardships, frustration and improper treatments. And it provides us with controlling interpersonal behavior, organizing internal, physiological, psychological process and various adaptive functions. If anger is not properly expressed, it brings about offensive attitude, leading to not only physical impairment but also anxiety in interpersonal relations and maladaptive to everyday life. For elementary school students, frequent quarrels, abusive words and defiant attitude toward adults are also caused by students' anger. Therefore, students' anger is one of the most difficult problems to be dealt with not only psychologically but also in elementary schools. In this respect, after investigating frequently experienced anger- inducing situations and inventing anger-inducing situation questionnaire, we postulated specific situations changing irrational belief into rational one. Based on these situations, we accounted for how to cope with anger inducing factors and change irrational belief into rational one, introducing several strategies needed to control anger, invented cognitive behavioral anger control program and tried to clarify the relationship between anger inducing experience and anger regulation ability. In order to derive usual anger-inducing situations, we made 180 students with fifth and sixth grade to record the reason why he/she got angry, mood, thought, behavior and result. Through this process, we could derive 47 situations bringing about anger and prepared anger-inducing situation questionnaire. It can be divided into 3 anger inducing situations by using factor analysis into 500 elementary students of fifth and sixth grade. Cognitive behavioral anger control program used in this study consists of 13 sessions. From first to fifth session, it is composed of 10 anger control methods to make students be aware of and control their anger. From sixth through thirteenth session, the relationship between irrational belief and anger inducing is introduced is focused on how irrational belief is changed into rational one. To examine the effects of the program, high anger students and the students lacking anger control are selected. Thirty students through pre-test using anger-inducing questionnaire and anger control ability questionnaire are taught the goals and procedures. Volunteer students and students with parents' consent allocated to experimental group (12 students) and the rest of the students are control group (12 students). Cognitive Behavioral Anger Control Program are applied every 50 minutes twice a week for 7 weeks and 4 weeks before and after this program, anger-inducing situation questionnaire and anger control ability questionnaire are practiced. Data collected in this study analyzed by SPSS and Kwakstat. In the middle of this program, quarterly reports and satisfaction measuratings were evaluated to examine whether there is verbal and non-verbal behavior change and students feel satisfied with the program. The results of this study are as follows: First, Cognitive-behavioral anger control program used in this study effectively reduced anger experience and lasted for 4 weeks. Second, cognitive behavioral anger control program increased students' ability to control anger inducing situations and also effective for 4 weeks. And its effect on verbal and non-verbal behaviour was very impressive Students come to realize that irrational belief is the cause of their anger and actively apply cognitive-behavioral anger control technique to themselves as well. Students became improved in their peer relations and felt confident in everyday life. The overall evaluation of this program can be listed as follows; "very satisfactory (91.67%)", "satisfactory (8.33%)", "very helpful (91.67%)", "helpful (8.33%). In this study we first investigated several anger-inducing situations and invented anger-inducing situation questionnaire and then applied cognitive behavioral anger control program in order to control their. anger and not to experience it. By creating workbooks and manuals this method can easily be used in school education settings.
Journal of The Korean Society of Grassland and Forage Science
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v.18
no.3
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pp.205-216
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1998
In order to investigate the short-term effect of cattle slurry N application on dry matter yield of reed canarygrass(Phalaris arundinacea L.) in uncultivated rice paddy during the harvested years in 1993~1995. Annual cattle slurry N was applied at the levels of 0, 90, 180, 270 and 360 kg $ha^{-1}$ in 3 cuttings, 0, 120, 240, 360 and 480 kg $ha^{-1}$ in 4 cuttings, and 0, 150, 300, 450 and 600 kg $ha^{-1}$ in 5 cutting, respectively. The results were summarized as follows; 1. The dry matter yields of all cutting frequencies in 1993 were higher than in other harvested years. 2. Significantly higher dry matter yields were obtained as 13.10 tons $ha^{-1}$ at level of 360 kg $ha^{-1}\;yr^{-1}$ in 3 cuttings, 12.50-12.83 tons $ha^{-1}$ at levels of 360-480kg $ha^{-1}\;yr^{-1}$ in 4 cuttings, and 12.52-12.56 tons $ha^{-1}$at levels of 450-600 kg $ha^{-1}$$yr^{-1}$in 5 cuttings, respectively. 3. Efficiency of dry matter production(kg DM $kg^{-1}$ N) to cattle slurry N application tended to decrease with higher levels of cattle slurry N application and cutting frequencies. Higher efficiencies of dry matter production to cattle slurry N application were obtained as 15.2 kg at N level of 90 kg $ha^{-1}\;yr^{-1}$in 3 cuttings, 19.8 kg at level of 120 kg $ha^{-1}\;yr^{-1}$ in 4 cuttings, and 10.0 kg at level of 150 kg $ha^{-1}\;yr^{-1}$ in 5 cuttings, respectively. 4. The highest relative yields(RY) in different cutting frequency were 38.1% for 2nd cut in 3 cuttings, 41.8% for 3rd cut in 4 cuttings, and 30.1% for 4th cut in 5 cuttings, respectively. 5. The estimated ranges of marginal dry matter yield(Ymar.) were 11.5~12.1 tons $ha^{-1}$ at the ranges of economic N level of 261.0~304.6 kg $ha^{-1}\;$yr^{-1}$ in 3 cuttings, 10.4~11.5 tons $ha^{-1}$ at the ranges of economic N level of 205~302.9 kg $ha^{-1}\;yr^{-1}$ in 4 cuttings, and 11.1~11.6 tons $ha^{-1}$ at the ranges of economic N level of 303.8~354.4 kg $ha^{-1}$ 5 cuttings, respectively. 6. Ranges of economic slurry N level(Necon.) in all cuts were 67.9~95.0 kg $ha^{-1}$ in 3 cuttings, 14.3~119.8 kg $ha^{-1}$in 4 cuttings, and 50.9-125.2 kg $ha^{-1}$ in 5 cutting, respectively. 7. The 3 cuttings per annum was a proper cutting frequency for the increase in dry matter production of reed canarygrass using uncultivated rice paddy.
Proceedings of the Korean Institute Of Construction Engineering and Management
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autumn
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pp.180-185
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2003
The increase of traffic over a bridge has been emerged as one of the most severe problems in view of bridge maintenance, since the load effect caused by the vehicle passage over the bridge has brought out a long-term damage to bridge structure, and it is nearly impossible to maintain operational serviceability of bridge to user's satisfactory level without any concern on bridge maintenance at the phase of completion. Moreover, bridge maintenance operation should be performed by regular inspection over the bridge to prevent structural malfunction or unexpected accidents front breaking out by monitoring on cracks or deformations during service. Therefore, technical breakthrough related to this uninterested field of bridge maintenance leading the public to the turning point of recognition is desperately needed. This study has the aim of development on automated inspection system to lower surface of bridge superstructures to replace the conventional system of bridge inspection with the naked eye, where the monitoring staff is directly on board to refractive or other type of maintenance .vehicles, with which it is expected that we can solve the problems essentially where the results of inspection are varied to change with subjective manlier from monitoring staff, increase stabilities in safety during the inspection, and make contribution to construct data base by providing objective and quantitative data and materials through image processing method over data captured by cameras. By this system it is also expected that objective estimation over the right time of maintenance and reinforcement work will lead enormous decrease in maintenance cost.
Purpose: Since radiopharmaceuticals are intended for human administration, it is imperative that we should undergo quality control very strictly. Now almost all the PET laboratories have adopted Bacterial Endotoxin Test as the stand quality control method to monitor whether pyrogen is free or not in the product vial containing crude solution. The aim of this study is to find out the reason why false positive result is observed when using commercially available test vial. Materials and Methods: For this experiment, we used commercially available single test kit (Associates of Cape Code. Inc. USA) and we made pH samples by mixing each buffer whose pH ranges are 1.0 to 12.0. Otherwise we made Ethanol samples diluted with distilled water. After making test samples, it added 0.2 mL to the test vial. Assay mixture in the test vial was incubated in a water bath (Chang Shin Co. KOR) for 60 min at $35{\pm}2^{\circ}C$. Results: After incubation period ($60{\pm}1^{\circ}C$), we inverted the test vial about $180^{\circ}$ To know what pH and how many percentage of Ethanol (Fisher Scientific Korea. Ltd) will affect the reaction. With pH buffer, false positive result was observed at pH 1.0 to 5.0 and 7.7 to 12.6 but at pH 5.2 to.7.5, the test results show negative. It's very strange that we couldn't observe negative test result with Tris buffer at pH 8.4, 8.6, 8.8, 9.0. in other case Ethanol, the test result was seen with 5 to 10% Ethanol. But to my surprise we could see very thick gel formation with 100% Ethanol. Conclusions: In this study, we could notice that pH which is too much acidic or alkalic or high concentrated Ethanol would affect Bacterial Endotoxin Test result. As you know, LAL test is sensitive and very reliable method. Therefore, we are needed to elicit the accurate test result as possible as we can.
Positron emission tomography/computed tomography (PET/CT) imaging with fluorodeoxyglucose (FDG) have been used as a powerful fusion modality in nuclear medicine not only for detecting cancer but also for staging and therapy monitoring. Nevertheless, there are various causes of FDG uptake in normal and/or benign tissues. The purpose of present study was to investigate whether additional delayed imaging can improve the diagnosis to differentiate the rates of FDG uptake at axillary lymph nodes (ALN) between malignant and benign in breast cancer patients. 180 PET/CT images were obtained for 27 patients with ALN uptake. The patients who had radiotherapy and chemotherapy were excluded from the study. $^{18}F$-FDG PET/CT scan at 50 min (early phase) and 90 min (delayed phase) after $^{18}F$-FDG injection were included in this retrospective study. The staging of cancers was confirmed by final clinical according to radiologic follow-up and pathologic findings. The standardized uptake value (SUV) of ALN was measured at the Syngo Acquisition Workplace by Siemens. The 27 patients included 18 malignant and 9 ALN benign groups and the 18 malignant groups were classified into the 3 groups according to number of metastatic ALN in each patient. ALNs were categorized less than or equal 3 as N1, between 4 to 9 as N2 and more than 10 as N3 group. Results are expressed as the mean${\pm}$standard deviation (S.D.) and statistically analyzed by SPSS. As a result, Retention index (RI-SUV max) in metastasis was significantly higher than that in non-metastasis about 5 fold increased. On the other hand, RI-SUV max in N group tended to decrease gradually from N1 to N3. However, we could not prove significance statistically in malignant group with ANOVA. As a consequence, RI-SUV max was good indicator for differentiating ALN positive group from node negative group in breast cancer patients. These results show that dual-time-point scan appears to be useful in distinguishing malignant from benign.
Kim, Eun Jung;Shin, Pyung Gyun;Jang, Kab Yeul;Kong, Won Sik;Han, Young Sook;Yoo, Young Bok
Journal of Mushroom
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v.12
no.3
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pp.171-180
/
2014
The primary objective of the present study is the characterization of the hybrids of monokaryon- monokaryon (mono-mono) crosses in mushroom breeding. We employed this technique for developing superior strains from Pleurotus species strains with 85 mono-mono intraspecific hybrids of 7 combinations between six Pleurotus ostreatus strains and one Pleurotus florida strain. In this study, the results of analysis on hybridization rate, nuclear DNA patterns, and colors and yields of fruit-bodies, are presented as follows. The crossability between mono-mono crossing ranges between 50 and 93.75%. The results of the analysis on the nuclear DNA patterns of 85 hybrid strains of mono-mono crosses share the nuclei of both parents, but their genetic similarities were predominated by either parent. The hybrid strain between P. florida and P. ostreatus showed patterns more similar to P. florida, while the hybrid strain between P. ostreatus and P. ostreatus either had patterns predominated by either parent strain. The fruiting body colors of the mono-mono crosses mostly had combined colors of both parents but showed the tendency of being more similar to that of either parent. 82% of the hybrid strain indicated similar fruiting body yields compared to both parent strains, while 0% was higher and 18% were lower than both parents. The present study was able to find out and suggest superior hybrid trains by identifying the nuclear DNA patterns of hybrids between Pleurotus species as well as the characteristics of their fruiting bodies. This study expects that the advantages of the mono-mono crossing are needs to be fully utilized in mushroom breeding and it is better to develop superior strains of Pleurotus species strains together with the mono-mono crossing.
In order to obtain basic information on soil inprovement and management of two reclaimed paddy soils, Munpo and Pori series, this study was carried out by investigating the change of physico-chemical and soil mechanical properties. 1. In the Munpo series, the contents of salt in the soil and ground water before paddy rice transplanting at 6 years after reclamation were 0.60 and 1.84%, respectively, and the safty cultivation of paddy rice was possible after 20 years, while that of the Pori series was after 12 years. 2. In the Munpo series, the change of the soil particle size according to the ages after reclamation showed negative correlation with sandy contents, but clay contents had positive correlation both in the surface and subsurface soils. The pori series showed reverse tendency. 3. Between the N-value and Atterberg limits and the ages showed negative correlation in both Munpo and Pori series, but clay-activity showed positive. Arid the cole values showed positive correlation in the Munpo series, but negative in the Pori series. 4. Cone penetrating resistance in the surface of the Munpo series after 6 years of reclamation was 62.9, after 20 years 24.5 and $16.7kg/cm^2$ in 15cm of soil depth at depth of 22.5cm after 27 years. In the Pori series, it was $3kg/cm^2$ at 15-20cm of soil depth after 12 years and it used after being creation of hard pan layer after 23 years. 5. Change of the clay minerals by the different year after accomplishment of tidal reclamation did not show. The major clay minerals were illite and kaolinite, and accessory clay minerals were montmorillonite and vermiculite in both Munpo and Pori series.
This study was conducted to investigate effects of maternal genetic potential and parity with pre- and postpartum periods on body weights, body condition score (BCS) and blood metabolites in relation to physiological stress and nutritional metabolism in Hanwoo cows. Also, this study was designed to develop effective husbandry technique for Hanwoo cows concerning of pre- and postpartum periods, and to get basic data for it. Forty five cows were allocated into two groups, 24 cows with high maternal genetic potentials and 21 cows with low maternal genetic potentials. The average parity of experimental cows with high and low maternal genetic potentials were 2.83±1.63 and 3.00±1.77, respectively. The growth performances such as body weights, average daily gain (ADG) and BCS were not different between two groups regardless of maternal genetic potential. However, pre- and postpartum periods had effects on the growth performances (p<0.05). Parity had no effects on ADG and BCS (p>0.05), but effect on body weight of cows (p<0.05). The metabolites of physiological stress such as neutrophil, hematocrit and cortisol, and nutritional metabolites such as albumin, blood urea nitrogen (BUN), triglyceride, and non-esterified fatty acid (NEFA) concentrations in blood of cows were affected by pre- and postpartum periods in a large scale, while those were partially affected by maternal genetic potential. However, among the metabolites in blood, only neutrophil and triglylceride concentrations were affected by different parity of cows. Therefore, the present study suggests that nutritional intake and digestion are affected by physiological stress due to the parturition, and it should need to consider different husbandry technique based on the maternal genetic potential, and pre- and postpartum periods of cows.
Bone metastases represent an important and frequent clinical problem in patients with advanced cancers. Especially, painful bone metastases are common features in these patients. Radiotherapy is an effective tool for palliative aim of painful metastatic osseous lesions. Various treatment results have been previously reported. The present retrospective study was aimed to evaluate the efficacy of palliative irradiation on pain relief, with the goal of selecting appropriate irradiation dose schedule. Radiotherapy consisted of 5times a week with a various fractional dose between 180 and 400cGy. The response of pain relief and the survival time after completion of radiotherapy are related to total dose and most of the patients have shown a similar response by the end of radiotherapy. The higher dose and the more aggressive multimodality treatment, the better pain control and the longer survival time.
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