• Title/Summary/Keyword: $^{18}$F-Na

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Transdermal Permeation-enhancing Activities of some Inorganic Anions

  • Ko, Young-Il;Kim, Sung-Su;Han, Suk-Kyu
    • Archives of Pharmacal Research
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    • v.18 no.4
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    • pp.231-236
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    • 1995
  • Effects of sodium salts of various monovalent inorganic anions on transdermal permeation of salicylic acid were investigated. In in-vitro experiment using a Franz-type diffusion cell and excisicylic acid were investigated. In-vitro experiment using a Franze-type diffusion cell and excised mouse skin, the permeation-enhancing activities of the sodium salts of inoraganic anions were rougly proportional to lyotropic Hofmeister serlling abilities of the anions l F/sup -/

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CEPHALOMETRIC ANALYSIS OF MAXILLOFACIAL NORMALS IN KOREAN ADULTS (한국 성인 정상교합자의 악안면 정상치에 관한 두부방사선 계측학적 연구)

  • Lee, Won You;Sohn, Byung Hwa
    • The korean journal of orthodontics
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    • v.14 no.1
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    • pp.135-149
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    • 1984
  • This study was performed to aid for the case analysis and diagnosis of the maxillofacial deformities. A cephalometric analysis was made from 101 subjects over 18 years old, that consisted of 46 males and 55 females with normal occlusion, acceptable profile. The results o f this study were obtained as follows: 1. The tables of normals in adult male and female were made. 2. The angles of SNO were $65.5^{\circ}$ in male and $65.3^{\circ}$ in female and the horizontal linear measurements from 0 to NA(O-NA) were 9.0 mm in male and 8.9 mm in female. 3. The cranial base angles (SN-FH) were $8.2^{\circ}$in male and $10.3^{\circ}$ in female and the mandibular plane angles (OP-HP) were $28.1^{\circ}$ in male and $26.2^{\circ}$ in female. 4. The correlation of (O-NA) to S-O/S-A and S-O/S-N were higher than SNO, and the correlation of (N-A) to SNA and (N-B) were high.

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Comparisons of biological activities and amino acid contents of edible mushrooms extracted using different solvents (주요 식용버섯의 추출용매에 따른 생리활성 및 아미노산 성분 차이 비교)

  • An, Gi-Hong;Han, Jae-Gu;Cho, Jae-Han
    • Journal of Mushroom
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    • v.18 no.1
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    • pp.53-62
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    • 2020
  • The aims of this study were to investigate the biological activities and amino acid contents of fermentation ethanol and sodium extracts from five edible mushrooms (Pleurotus eryngii, Pleurotus ostreatus, Flammulina velutipes, Lentinula edodes, and Agaricus bisporus). DPPH radical scavenging activities in 30% fermentation ethanol extracts of P. eryngii and P. ostreatus were significantly higher than those in sodium extracts (p<0.05). Nitrite scavenging activities were also higher in the 30% fermentation ethanol extracts of P. eryngii and P. ostreatus. The total polyphenol contents of P. eryngii, P. ostreatus, and F. velutipes were high in 70% fermentation ethanol extracts. The analysis of amino acids revealed that the 70% fermentation ethanol extract of P. eryngii had the highest content of total amino acids, with higher phenylalanine, leucine, isoleucine, valine, and tyrosine contents higher than the other extracts. In all the extracts of P. ostreatus, glutamic acid was the most abundant amino acid. The 5% NaCl and 30% fermentation ethanol extracts of F. velutipes contained abundant glutamic acid, alanine, and proline. Glutamic acid was the most abundant amino acid in the 70% and 30% fermentation ethanol extracts of L. edodes. In the 5% NaCl extracts of A. bisporus, glutamic acid and alanine were abundant. Thus, maximum biological and nutritional ingredients can be extracted using the optimal solvents for each type of mushroom.

Blood Biochemical Parameters, Physical Activity, Stress and Sleep Management by Body Mass Index (비만클리닉을 내원한 성인의 체질량지수에 따른 혈액생화학적 지표, 신체활동, 스트레스 및 수면관리)

  • Na, Yeon Kyung;Hong, Hae Sook;Suk, Hyun Jin
    • Journal of Korean Biological Nursing Science
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    • v.16 no.2
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    • pp.133-140
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    • 2014
  • Purpose: The purpose of this study was to investigate the comparison of blood biochemical parameters, physical activity, stress, and sleep management between obese and non-obese subjects according to the body mass index (BMI). Methods: Data were collected from February 1 to May 31 in 2012. This research involved 403 subjects who visited an obesity clinic in Korea. They were divided into 4 groups: normal weight 100 ($18.5{\leq}BMI$ < $23.0kg/m^2$), overweight 100 ($23.0{\leq}BMI$ < $25.0kg/m^2$), obese 100 ($25.0{\leq}BMI$ < $30.0kg/m^2$), and severely obese 103 ($BMI{\geq}30.0kg/m^2$). Data were analyzed using SPSS version 19.0. Results: There were significant differences on the SGPT (F=22.98, p<.001), SGOT (F=12.91, p<.001), creatinine (F=4.82, p=.003), triglyceride (F=20.17, p<.001), and total cholesterol (F=6.55, p<.001) among the subjects according to the BMI. There was no significant association between frequency of physical activity according to the BMI. There was significant association regarding the management of sleep (F=5.13, p=.002), but no significant association regarding the management of stress. Overall, there were significant association regarding the management of stress and sleep (F=3.79, p=.011) among the groups. Conclusion: The result of this study suggests that it is possible to use the information as basic data for educational and nursing intervention programs based on the BMI.

Effects of Fluoride Levels on Lipid Peroxidation and Antioxidant Systems of Growing/Finishing Pigs

  • Tao, X.;Xu, Z.R.;Han, X.Y.;Wang, Y.Z.;Zhou, L.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.4
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    • pp.552-556
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    • 2005
  • Malondialdehyde (MDA) and total antioxidant capacity (T-AOC) levels, superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), glutathione transferase (GST) and xanthine oxidase (XOD) activities were analyzed in serum, livers and kidneys of pigs treated with graded doses of fluoride (as NaF). Ninety-six Duroc-Landrace-Yorkshire crossbred growing pigs (48 barrows and 48 gilts, respectively), with similar initial weight 24.14${\pm}$1.12kg, were randomly assigned to four different treatments. These treatments containing the following added F: basal control; 50 mg/kg F; 100 mg/kg F and 150 mg/kg F were randomly assigned to four pens (three barrows and three gilts) each in a completely randomized design. The results showed pigs treated with 150 mg/kg F significantly decreased average daily gain (ADG) (p<0.05) and increased feed/gain ratio (F/G) (p<0.05) compared to the controls. In the groups treated with fluoride, the contents of MDA increased, T-AOC levels and the activities of SOD, GSH-PX, CAT, GST and XOD decreased, and most of which altered significantly (p<0.05). The study therefore indicated the mechanism of excess fluoride on the impairment of soft tissues involved in lipid peroxidation and decreased the activities of some enzymes associated with free radical metabolism.

Development of a Virus Elution and Concentration Procedure for Detecting Norovirus in Cabbage and Lettuce

  • Moon, Aerie;Hwang, In-Gyun;Choi, Weon-Sang
    • Food Science and Biotechnology
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    • v.18 no.2
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    • pp.407-412
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    • 2009
  • In this study, a rapid and efficient concentrating procedure that can be used for detecting viruses in vegetables was developed. The Sabin strain of poliovirus type 1 was used to evaluate the efficiency of virus recovery. The procedure included: (a) elution with 0.25 M threonine-0.3 M NaCl pH 9.5; (b) polyethylene glycol (PEG) 8000 precipitation; (c) chloroform extraction; (d) 2$^{nd}$ PEG precipitation; (f) RNA extraction; (g) reverse transcription-polymerase chain reaction (RT-PCR) combined with semi-nested PCR. The overall recoveries by elution/concentration were 29.0% from cabbage and 13.7% from lettuce. The whole procedure usually takes 18 hr. The overall detection sensitivity was 100 RT-PCR units of genogroup II norovirus (GII NoV)/25 g cabbage and 100 RT-PCR units of GII NoV/10 g lettuce. The virus detecting method developed in this study should facilitate the detection of low levels of NoV in cabbage and lettuce.

Correlation between Acupuncture Stimulation and Cortical Activation - Further Evidence (침자극이 대뇌피질의 활성화에 미치는 영향)

  • Cho, Zang-Hee;Kim, Kyung-Yo;Kim, Hyeong-Kyun;Lee, Byung-Ryul;Wong, E.K.;Kang, Chang-Ki;Na, Chang-Su
    • Journal of Acupuncture Research
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    • v.18 no.3
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    • pp.105-113
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    • 2001
  • 목적 : 이 실험의 목적은 경혈에 대한 침자극이 대뇌피질에 어떠한 영향을 미치는가에 대하여 체계적이고 객관적으로 증명하는 것이다. 방법 : 시각과 관련이 있는 광명(GB37), 청각과 관련이 있는 협계(GB43) 및 외관(SJ5)을 자극하고 fMRI를 통하여 대뇌피질의 활성정도를 관찰하였다. 결과 : 이들 경혈의 자극으로 시각과 청각과 관련된 피질의 활성이 나타났다. 자극에 의한 대뇌피질 활성을 fMRI를 통하여 고찰한 결과 특정한 경혈의 자극이 대뇌피질을 활성화시킨다는 사실을 알 수 있었다. 결론 : 치료 효과는 그 경혈의 자극에 의한 대뇌피질의 활성과 관련이 있음을 말하는 것으로, 경혈지극과 대뇌와의 상관성을 증명하는 것이다.

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Effect of Career Development and Career Plateau on Career Satisfaction of Nurses (경력개발과 경력정체가 간호사의 경력만족에 미치는 영향)

  • Kim, Yo Na
    • Journal of Korean Public Health Nursing
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    • v.30 no.1
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    • pp.83-92
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    • 2016
  • Purpose: In this study, factors affecting career satisfaction of nurses were explored in the career development and career plateau. Methods: Participants were 143 nurses drawn from a general hospital in Busan. independent t-test, one way ANOVA and Hierarchial multiple regression with SPSS/WIN 18.0 program were used for data analysis. Results: The mean score of career satisfaction was 2.85/5, Career development was 2.99/5, and career plateau obtained 2.53/5. The extent of the career satisfaction differ according to age(F=3.60, p=.030), marital status(t=2.42, p=.017), current position(F=6.61, p=.002), total clinical career(F=3.36, p=.023), and work unit(t=0.95, p=.029). The influencing factors in career satisfaction of clinical nurses were organizational career management, career plateau and individual career planning. $R^2=.415$. Organizational career management was the highest significant predictor of career satisfaction(${\beta}=.325$). Conclusion: Factors influencing career satisfaction were organizational career management, career plateau and individual career planning. Thus a program for career development of organization is needed.

A Study on the Effectiveness of Bigrams in Text Categorization (바이그램이 문서범주화 성능에 미치는 영향에 관한 연구)

  • Lee, Chan-Do;Choi, Joon-Young
    • Journal of Information Technology Applications and Management
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    • v.12 no.2
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    • pp.15-27
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    • 2005
  • Text categorization systems generally use single words (unigrams) as features. A deceptively simple algorithm for improving text categorization is investigated here, an idea previously shown not to work. It is to identify useful word pairs (bigrams) made up of adjacent unigrams. The bigrams it found, while small in numbers, can substantially raise the quality of feature sets. The algorithm was tested on two pre-classified datasets, Reuters-21578 for English and Korea-web for Korean. The results show that the algorithm was successful in extracting high quality bigrams and increased the quality of overall features. To find out the role of bigrams, we trained the Na$\"{i}$ve Bayes classifiers using both unigrams and bigrams as features. The results show that recall values were higher than those of unigrams alone. Break-even points and F1 values improved in most documents, especially when documents were classified along the large classes. In Reuters-21578 break-even points increased by 2.1%, with the highest at 18.8%, and F1 improved by 1.5%, with the highest at 3.2%. In Korea-web break-even points increased by 1.0%, with the highest at 4.5%, and F1 improved by 0.4%, with the highest at 4.2%. We can conclude that text classification using unigrams and bigrams together is more efficient than using only unigrams.

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Personal Information Detection by Using Na$\ddot{i}$ve Bayes Methodology (Na$\ddot{i}$ve Bayes 방법론을 이용한 개인정보 분류)

  • Kim, Nam-Won;Park, Jin-Soo
    • Journal of Intelligence and Information Systems
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    • v.18 no.1
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    • pp.91-107
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    • 2012
  • As the Internet becomes more popular, many people use it to communicate. With the increasing number of personal homepages, blogs, and social network services, people often expose their personal information online. Although the necessity of those services cannot be denied, we should be concerned about the negative aspects such as personal information leakage. Because it is impossible to review all of the past records posted by all of the people, an automatic personal information detection method is strongly required. This study proposes a method to detect or classify online documents that contain personal information by analyzing features that are common to personal information related documents and learning that information based on the Na$\ddot{i}$ve Bayes algorithm. To select the document classification algorithm, the Na$\ddot{i}$ve Bayes classification algorithm was compared with the Vector Space classification algorithm. The result showed that Na$\ddot{i}$ve Bayes reveals more excellent precision, recall, F-measure, and accuracy than Vector Space does. However, the measurement level of the Na$\ddot{i}$ve Bayes classification algorithm is still insufficient to apply to the real world. Lewis, a learning algorithm researcher, states that it is important to improve the quality of category features while applying learning algorithms to some specific domain. He proposes a way to incrementally add features that are dependent on related documents and in a step-wise manner. In another experiment, the algorithm learns the additional dependent features thereby reducing the noise of the features. As a result, the latter experiment shows better performance in terms of measurement than the former experiment does.