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Ornithine Decarboxylase Activity in Porcine Reproductive Tissues (Gilt에 있어서 Tissue내에 함유되어 있는 Ornithine Decarboxylase의 활성)

  • ;J.R. Diehl
    • Korean Journal of Animal Reproduction
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    • v.17 no.2
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    • pp.159-164
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    • 1993
  • The tissue levels of ornithine decarboxylase (ODC) during the estrous cycle and pregnancy were investigated in the pig. Sexually mature female cycling pigs were used. One animal was sacrificed on estrous cycle days 3, 10, 17, 18, 19, 20 and during pregnancy on day 11. 12, B. 14, 18, 19, 20, 48, 50 and 52. Tissues from the hypothalamus, pituitary, uterus, ovary and skeletal muscle were removed. They were homogenized in buffer, and supernatants were used for measurement of protein concentration and ODC activity. The release of $^14$CO$_2$ from radiolabeled ornithine was proportional to the amout of protein added over the range of 0.125~4mg and to the incubation time. ODC appered to have some relationship with the biological functions of the pituitary, ovary and uterus during the reproductive period, especially on day 19 of the estrous cycle, while it showed no such activities in hypothalamus and skeletal muscle of mature pigs. Uterine tissues had significantly more ODC activity than other tissues tested(p < 0.05).

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Aseessment of the quality of life related to oral health of middle students in some area (일부지역 중학생의 구강건강관련 삶의 질 평가)

  • Jung, Yong-Hee;Bae, Sung-Suk;Jang, Jong-Hwa;Kim, Suk-Hyang
    • The Journal of Korean Society for School & Community Health Education
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    • v.14 no.1
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    • pp.49-60
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    • 2013
  • Objectives: The main purpose of this study was to examine factors contributing the quality of life related to oral heath such as level of oral health knowledge, subjective knowledge on oral health, awareness of oral health and OHIP-14, and furthermore to analyze any relations among these factors. Methods: The questionnaire survey was carried out on a convenience sample of 230 middle school students at the selected middle school in Chungcheongnam-do. T-test and one-way ANOVA and correlation test were conducted over the collected datas using SPSS 12.0(SPSS 12.0 KOR for Windows, SPSS Inc, Chicago, USA). Results: The results of the study are as follows: 1. 6.38 was average score for oral health knowledge and 10.0 was the maximum. Subjective oral health awareness scored of average 2.99 with maximum of 5.0. OHIP-14 corresponded to average 4.30 and maximum 5.0. 2. Different level of oral heath knowledge was resulted from that of education, which means the greater level of oral health knowledge indicated greater awareness of oral health. 3. OHIP-14 was higher for those who lived with their parents than those who in did not(P=0.012). 4. There exhibits a proportional relationship between subjective awareness of oral health and OHIP-14(r=0.297). Conclusion: It was found that subjective awareness of oral health partially influences to OHIP-14. In other words, subjective awareness of oral health has an effect on the quality of life related to oral health. Hence, there needs more effort on oral health education and oral disorder prevention activities in order to improve subjective awareness of oral health.

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Effects of an Infant/Toddler Health Program on Parenting Knowledge, Behavior, Confidence, and Home Environment in Low-income Mothers (저소득 가정 영유아 건강 프로그램이 어머니의 양육지식, 행동, 자신감 및 가정환경에 미치는 효과)

  • Lee, Gyungjoo;Yang, Soo;Jang, Mi Heui;Yeom, Mijung
    • Journal of Korean Academy of Nursing
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    • v.42 no.5
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    • pp.671-679
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    • 2012
  • Purpose: This study was conducted to evaluate the effectiveness of a mother/infant-toddler health program developed to enhance parenting knowledge, behavior and confidence in low income mothers and home environment. Methods: A one-group pretest-posttest quasi-experimental design was used. Sixty-nine dyads of mothers and infant-toddlers (aged 0-36 months) were provided with weekly intervention for seven session. Each session consisted of three parts; first, educating to increase integrated knowledge related to the development of the infant/toddler including nutrition, first aid and home environment; second, counseling to share parenting experience among the mothers and to increase their nurturing confidence; third, playing with the infant/toddler to facilitate attachment-based parenting behavior for the mothers. Results: Following the programs, there were significant increases in parenting knowledge on nutrition and first aid. A significant improvement was found in attachment-based parenting behavior, but not in home safety practice. Nurturing confidence was not significantly increased. The program led to more positive home environment for infant/toddler's health and development. Conclusion: The findings provide evidence for mother-infant/toddler health program to improve parenting knowledge, attachment-based parenting behavior and better home environment in low income mothers. Study of the long term effectiveness of this program is recommended for future research.

Internal derangement as a predictor of provoked pain on mouth opening: A magnetic resonance imaging study

  • Koh, Kwang-Joon;Park, Ha-Na;Kim, Kyoung-A
    • Imaging Science in Dentistry
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    • v.47 no.4
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    • pp.219-226
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    • 2017
  • Purpose: This study investigated the relationship between pain and internal derangement in temporomandibular disorder(TMD) patients using magnetic resonance imaging (MRI). Materials and Methods: This study analyzed 356 TMD patients (712 temporomandibular joints [TMJs]). The inclusion criteria were the presence of spontaneous or provoked pain on one or both TMJs and having undergone MRI. The patients with provoked pain were divided into 3 groups: pain on palpation, pain on mouth opening, and pain on mastication. MRI was performed using a 1.5-T scanner. T1- and T2-weighted parasagittal and paracoronal images were obtained. According to the findings on the T1-weighted images, another 3 groups were created based on internal derangement: normal, disc displacement with reduction, and disc displacement without reduction. The MRI findings were independently interpreted by 2 experienced oral and maxillofacial radiologists at 2 different times. Statistical analysis was performed by the chi-square test using SPSS (version 12.0; SPSS Inc., Chicago, IL, USA). Results: Provoked pain on mouth opening was found to be correlated with internal derangement in TMD patients (P<.05). However, spontaneous pain and provoked pain on palpation or mastication were not associated with internal derangement(P>.05). Conclusion: These results suggest that internal derangement was a significant predictor of provoked pain on mouth opening.

(A) Study on the Formative Characteristics of Embroidery Panels of Hwarot at the Victoria and Albert Museum (빅토리아 앨버트 박물관 소장 활옷의 조형성 연구)

  • Kwon, Hea Jin;Kim, Jiyeon
    • Journal of the Korean Society of Costume
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    • v.63 no.7
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    • pp.176-188
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    • 2013
  • This research examines embroidery panels of Hwarot belonging to the Victoria and Albert Museum (the V&A). There are a total of seven objects and are all disassembled into clothe pieces. They were classified into two groups according to their acquisition year. One group, four objects, was acquired by the Museum in 1920. Considering their materials, embroidery threads, techniques and formative characteristics of patterns, it can be assumed that the objects formed an original dress, Hwarot. Although they look very similar to the embroidery patterns of Hwarot belonging to National Folklore Museum of Korea, they are more finely embroidered with very thin embroidery thread that uses the Jarisu technique. There are some differences in used embroidery threads and embroidery skills between Hwarot artifacts of the National Museum of Korea and the V&A. The embroidery of the National Museum of Korea used thicker threads and longer (approximately 0.7cm) Jarisu stitch techniques. With these details, they would have been made in different time periods. Comparison of the V&A and Changdeok Palace' Hwarot objects show that their patterns' motifs are almost similar but the pattern units, expressions and embroidery techniques are different. Regarding the colors of their patterns, it is noticeable that the peonies are generally expressed in reddish and the lotus patterns are expressed in either bluish or purplish color. It seems that they are contrasted with red-colored flowers and show harmony between yin and yang symbolically. Three artifacts of another group were acquired in 1925. Two of them show patterns almost the same as those of the sleeves of Hwarot (no.33156, no.33158) in Chicago Field Museum collection. The pattern of the remaining object is very similar to Hansam of Hwarot (no.33158).

The study on determinants for changing employment positions among dental hygienists (치과위생사의 이직결정에 영향을 미치는 요인에 관한 연구)

  • Jung, Yun-Hoa
    • Journal of Korean society of Dental Hygiene
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    • v.3 no.2
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    • pp.183-196
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    • 2003
  • Purpose: This study sought to identify factors associated with dental hygienists' decisions to leave one dental office and commence practice in another. In addition to, the reasons dental hygienists stay in the profession were investigated. Demographic descriptors, including education level, marital status and age, and employment setting were also examined. Methods: Currently practicing dental hygienists in Korea were surveyed from March to May 2003. Data were collected through a questionnaire. The survey collected information concerning the 461 respondents' personal characteristics and reasons associated with changing positions and staying. Data were analyzed using frequency distributions, independent t-tests and chi-square analyses. All statistical analyses were conducted using the Statistical Package for Social Scientists(SPSS v.10, Chicago, Illinois). Results: The primary reasons for taking up another employment were found to be better offer, inadequate salary and personal conflict with dentist. Secondary reasons stated for changing their job revealed additional factors including inadequate salary, better offer, and lack of benefits. The primary influence in deciding to remaining in the practice of dental hygiene was self-development. Family responsibility, safe environment and professional collaboration were also important factors in deciding to remain in workforce. Conclusion: The position changes of dental hygienists are primarily influenced by better offer. Inadequate salary and conflict with dentist were also important factors in deciding to change employment positions. The findings suggest that dental hygienists who remain in the workforce are positively influenced mainly by self-development. Employers of dental hygienists should be aware of these factors in employing process. If more hygienists could remain longer in their positions, the manpower situation would be affected positively.

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Racial/Ethnic Residential Segregation : A Case Study of Asian Immigrants in Chicago illinois PMSA (인종.민족별 거주지 분화 이론에 대한 고찰과 평가 -미국 시카고 아시아인을 사례로-)

  • Chung, Su-Yeul
    • Journal of the Korean Geographical Society
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    • v.43 no.4
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    • pp.511-525
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    • 2008
  • Residential segregation is often considered to be one of the social problems that intensify urban inequality This study reviews three different frameworks about the causes of residential segregation and tests their validity in the real world. The review focuses on racial/ethnic residential segregation in U.S. cities since it has been blamed for persistent socio-economic gap among racial/ethnic groups. The three different segregation frameworks include 'spatial assimilation' that attributes segregation to low degree of assimilation and acculturation, 'place stratification' to discriminatory practices in the housing and mortgage markets such as steering, blockbusting, and redlining, and 'resurgent ethnicity' to racial/ethnic preference in residential choice, particularly in-group attraction. As an effort to test their validity, the paper examined residential pattern changes of the four major Asian nationality groups through 1990s and found that their residences got decentralized but re-cluster in some selected suburbs. This supports 'resurgent ethnicity' largely and 'spatial assimilation' only partly.

Color stability of provisional restorative materials with different fabrication methods

  • Song, So-Yeon;Shin, Yo-Han;Lee, Jeong-Yol;Shin, Sang-Wan
    • The Journal of Advanced Prosthodontics
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    • v.12 no.5
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    • pp.259-264
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    • 2020
  • PURPOSE. The aim of this study was to investigate and compare the color stability of provisional restorative materials fabricated by 3D printing, dental milling, and conventional materials. MATERIALS AND METHODS. For the experimental groups, two commercially available 3D-printing provisional resins (E-Dent 100; EnvisionTEC GmbH, Germany & VeroGlaze™; Stratasys®, USA), two dental milling blocks (PMMA Disk; Yamahachi Dental Co., Japan & Telio®CAD; Ivoclar Vivadent AG, Liechtenstein), and two conventional materials (Alike™; GC Co., Japan & Luxatemp automix plus; DMG, Germany) were used. The water sorption and solubility test were (n=10, respectively) carried out according to ISO4049:2000 (International Standards Organization, Geneva, Switzerland). For the color stability test (n=10), coffee and black tea were used as staining solutions, and the specimens were stored for 12 weeks. Data were analyzed by one-way ANOVA and Tukey's HSD using SPSS version 22.0 (SPSS Inc. Chicago, IL, USA) (P<.05). RESULTS. Alike and Veroglaze showed the highest values and Luxatemp showed the lowest water sorption. In the color stability test, the ΔE of conventional materials varied depending on the staining solution. PMMA milling blocks showed a relatively low ΔE up to 4 weeks, and then significantly increased after 8 weeks (P<.05). 3D-printed materials exhibited a high ΔE or a significant increase over time (P<.05). CONCLUSION. The degree of discoloration increased with time, and a visually perceptible color difference value (ΔE) was shown regardless of the materials and solutions. PMMA milled and 3D-printed materials showed more rapid change in discoloration after 8 weeks.

Attitudes of South Asian Women to Breast Health and Breast Cancer Screening: Findings from a Community Based Sample in the United States

  • Poonawalla, Insiya B.;Goyal, Sharad;Mehrotra, Naveen;Allicock, Marlyn;Balasubramanian, Bijal A.
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.20
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    • pp.8719-8724
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    • 2014
  • Background: Breast cancer incidence is increasing among South Asian migrants to the United States (US). However, their utilization of cancer screening services is poor. This study characterizes attitudes of South Asians towards breast health and screening in a community sample. Materials and Methods: A cross-sectional survey based on the Health Belief Model (HBM) was conducted among South Asians (n=124) in New Jersey and Chicago. The following beliefs and attitudes towards breast cancer screening were assessed-health motivation, breast self-examination confidence, breast cancer susceptibility and fear, and mammogram benefits and barriers. Descriptive statistics and Spearman rank correlation coefficients were computed for HBM subscales. Findings: Mean age of participants was 36 years with an average 10 years stay in the US. Most women strived to care for their health ($3.82{\pm}1.18$) and perceived high benefits of screening mammography ($3.94{\pm}0.95$). However, they perceived lower susceptibility to breast cancer in the future ($2.30{\pm}0.94$). Conclusions: Increasing awareness of breast cancer risk for South Asian women may have a beneficial effect on cancer incidence because of their positive attitudes towards health and breast cancer screening. This is especially relevant because South Asians now constitute one of the largest minority populations in the US and their incidence of breast cancer is steadily increasing.

Relationship between pain and effusion on magnetic resonance imaging in temporomandibular disorder patients

  • Park, Ha-Na;Kim, Kyoung-A;Koh, Kwang-Joon
    • Imaging Science in Dentistry
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    • v.44 no.4
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    • pp.293-299
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    • 2014
  • Purpose: This study was performed to find the relationship between pain and joint effusion using magnetic resonance imaging (MRI) in temporomandibular disorder (TMD) patients. Materials and Methods: The study subjects included 232 TMD patients. The inclusion criteria in this study were the presence of spontaneous pain or provoked pain on one or both temporomandibular joints (TMJs). The provoked pain was divided into three groups: pain on palpation (G1), pain on mouth opening (G2), and pain on mastication (G3). MRI examinations were performed using a 1.5-T MRI scanner. T1- and T2-weighted images with para-sagittal and para-coronal images were obtained. According to the T2-weighted image findings, the cases of effusions were divided into four groups: normal, mild (E1), moderate (E2), and marked effusion (E3). A statistical analysis was carried out using the $X^2$ test with SPSS (version 12.0, SPSS Inc., Chicago, IL, USA). Results: Spontaneous pain, provoked pain, and both spontaneous and provoked pain were significantly related to joint effusion in TMD patients (p<0.05). However, among the various types of provoked pain, pain on palpation of the masticatory muscles and TMJ (G1) was not related to joint effusion in TMD patients (p>0.05). Conclusion: Spontaneous pain was related to the MRI findings of joint effusion; however, among the various types of provoked pain, pain on palpation of the masticatory muscles and TMJ was not related to the MRI findings of joint effusion. These results suggest that joint effusion has a significant influence on the prediction of TMJ pain.