• 제목/요약/키워드: 인기 요인

검색결과 156건 처리시간 0.027초

Optimization of in vitro lily culture system with different treatments of taurine (타우린 처리에 의한 나리 기내 식물체 생산체계 최적화)

  • Lee, Sang-Hee;Yang, Hwan-Rae;Kim, Sun Tae;Jun, Tae Hwan;Kim, Yong Chul;Kim, Jong Bo
    • Journal of Plant Biotechnology
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    • 제44권4호
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    • pp.484-489
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    • 2017
  • Lilies as cut flowers are one of the most popular ornamental plants in South Korea. It is necessary to develop lily cultivars with high qualities. Therefore, highly efficient propagation systems are needed following release of elite cultivars. In this study, we used taurine treatment to improve the growth conditions including shoot and bulb formation, fresh weight gain, and reduction of rooting and browning. We experimentally evaluated the effect of taurine as a growth stimulator, at concentrations of 0, 2.5, 5, 10, 15 and 20 mg/l. The results showed that 20 mg of taurine enhanced shoot formation by 85% and increased fresh weight 5.5-fold, which was higher than the approximately four-fold increase in the control. In addition, multiple bulb formation rate was increased by 80% and rooting by 82% following exposure to 20 mg/l of taurine. The efficiency of taurine treatment was higher than that of control with 50% multiple bulb formation rate and 60% rooting rate. The browning was 10.6% at 2.5 mg/l of taurine when compared with 0.8% at 20 mg/l. Taurine showed a positive effect on the overall growth of lily plants in terms of increased fresh weight, shoot formation rate, rooting, and formation of multiple bulbs, indicating that taurine can be used as an alternative to amino acids or as an antioxidant such as citrate and vitamin C in plant tissue culture.

Treatment Status and Its Related Factors of the Hypertensives Detect ed Through Community Health Promotion Program (지역사회 보건사업에서 발견된 고혈압환자의 치료실태와 관련요인)

  • Kam, Sin;Kim, In-Ki;Chun, Byung-Yeol;Lee, Sang-Won;Lee, Kyung-Eun;Ahn, Soon-Ki;Jin, Dae-Gu;Lee, Kyeong-Soo
    • Journal of agricultural medicine and community health
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    • 제26권2호
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    • pp.133-146
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    • 2001
  • The purpose of this study was to investigate the treatment status and its related factors of the newly detected rural hypertensives through community health promotion program. A questionnaire survey and blood pressure measurement were performed to 6,977 residents of a rural area, and 282 hypertensives detected by blood pressure measurement were selected as subjects of the study. The study employed the health belief model as a hypothetical model. The major results of this study were as follows: The proportion of person experienced treatment among hypertensives was 12.0%. Treatment experience rate was significantly related with age and educational level(p<0.01). That is, if they were older, lower educational level, the treatment experience rate was higher. The major reasons of no treatment were 'they had not hypertensive symptoms ' (45.6%), 'their blood pressure was not high so much that they received treatment ' (43.2%). The chief facilities for treatment were public health institutions(57.9%) such as health center and health subcenter, and hospital/ clinics(29.8%). The treatment experience rate was higher when they had higher perceived severity for hypertension, lower perceived barrier to treatment, although statistically not significant. Treatment experience rate was significantly related with cues to action and health education experience(p<0.05). That is, if they had hypertension related symptoms such as headache previously, patients suffered from hypertension complication and health education experience for hypertension, the treatment experience rate was higher. In multiple logistic regression analysis for treatment experience, having a cerebrovascular patient in their acquaintance and the experience of health education for hypertension were significant variables. On consideration of above findings, it would to be essential to provide knowledge about hypertension and its treatment, and severity of hypertension complications through health education.

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IMPACT OF PARENTAL PSYCHIATRIC DISORDER ON OFFSPRING'S DEPRESSION, ANXIETY, SELF CONCEPT AND PERCEPTION OF FAMILIAL RELATIONSHIP (정신과 환자 자녀의 우울, 불안, 자기 개념 그리고 가정환경의 특성에 대한 연구)

  • Lee, Jung-Bum;Cho, Soo-Churl
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제9권1호
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    • pp.54-66
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    • 1998
  • Objectives:This study was to investigate the impact of parental psychiatric disorder on offspring's depression, anxiety, self concept, perception of familial relationship compared with offspring of normal control. In offsprings of parents with psychiatric disorder, this study explored whether their psychopathology, self concept, and perception of familial relationship were influenced by parent’s sex, onset time of parent’s psychiatric disorder and parent’s psychiatric diagnosis. Methods:52 offsprings aged 10-18 years of 39 psychiatric outpatient were surveyed from June, 1997 to April, 1998 and completed several questionnaaire, including Korean from of the Family Environment Scale, Korean form of the State-Trait Anxiety Inventory for Children, Korean form of Kovac’s Children’s Depression Inventory, and Korean form of Piers-Harris Children’s Self-Concept Scale. Their score was compared with offsprings’ of normals. In offsprings of parents with psychiatric disorder, they were compared according to parent’s sex, onset time of parent's psychiatric disorder and parent’s psychiatric diagnosis. Results:The results were as follows:1) Offsprings of parents with psychiatric disorder reported higher level of state anxiety and lower level of the FES expressive subscale than offsprings of normals(p<0.05). But they reported higher level of PHCSCS intellectual & school status subscale and popularity subscale than normals(p<0.05). 2) There were no differences in anxiety, depression, self concept, and perception of familial relationship between patient’s sex. 3) Offsprings less than 3 years old when parent’s psychiatric disorder had developed showed higher level of trait anxiety and lower level of FES control subscale than offsprings more than 3 years old (p<0.05). 4) There were no diferences in anxiety, depression, self concept, and perception of familial relationship between patient’ diagnostic groups(schizophrenia spectrum disorder-mood disoderneurosis). Conclusion:The finding indicated that self reported scale of anxiety and depression showed no significant difference between offsprings of psychiatric patients and offsprings of normals. In offsprings of parents with psychiatric disorder, parent’s sex and psychiatiric diagnosis had no influence on offspring’s psychopathology. But the offspring’s age(before 3 years old) when the parent’s psychiatriric disorder developed had influence on higher level of offspring’s trait anxiety. For further high risk group study, direct interview and evaluation of parent-child agreement or teacher-child agreement will be needed in longitudinal study.

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Comparison of Major and Job Satisfaction of Students and Graduates in Dental Hygiene and Nursing (대전 일부 치위생학과와 간호학과 재학생 및 졸업생의 전공과 업무 만족도 비교)

  • Baek, Seong-Min;Song, Da-Hye;Park, Jin-Seul;Bae, Jeong-Yeon;Jeong, Won-Seok;Hwang, Soo-Jeong
    • Journal of dental hygiene science
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    • 제13권4호
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    • pp.378-385
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    • 2013
  • Although dental hygiene has haven a special domain of knowledge and its own business territory, people have misunderstandings about dental hygienists as nurses or nirses' aides in Korea. Inadequate knowledge could make negative results for university applicants to choose department of dental hygiene. This study was aimed to compare major and job satisfaction of students and graduates in dental hygiene and nursing for objective comparison and suggestion for dental hygiene. The subjects were 98 dental hygiene students, 113 nursing students, 53 dental hygienists, and 53 nurses by convenience sampling in Daejeon. The questionnaire consisted of satisfaction of college life, social identity, career path and job. ANOVA with Tukey post-hoc analysis was used with SPSS 20.0 program. Although dental hygiene students scored lower than nursing students in satisfaction of college life, social identity, career path and job, dental hygienists, nurse and dental hygiene students didn't have different satisfaction of job. Dental hygienists scored the lowest in relation with clinical work and major curriculum, and sexual discrimination. Nurses scored the lowest in working condition and salary. Dental hygienists and dental hygiene students had lower scores in information and advice of career path, entrance to graduate school, stable work, family's pride of my major, social position and so on. We suggested the community of dental hygiene should try to promote dental hygienists to public, the community of dentists should give the stable working condition, and the department of dental hygiene should improve the major curriculum to relate with clinical work.

Reproductive Cycle of the Echiuroid Worm Urechis unicinctus(von Drasche) in Southern Korea (한국산 개불, Urechis unicinctus (von Drasche)의 생식주기)

  • 최상덕;김호진;이원교;곽은주;윤호섭;라성주;이인곤
    • Journal of Aquaculture
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    • 제13권2호
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    • pp.169-174
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    • 2000
  • Reproductive cycle of U. unicinctus was studied from September 1998 to August 1999, using gonadosomatic index (CSI) as an indicator. In November, the CSI values were maximum for male (6.2) and female (7.0), respectively; the values were lowest for them (1.0 and 0.5) during the successive february. Subsequently, they rapidly increased and attained peak by March-April. The values decreased again in both sexes and remained unchanged until August. The index increased in October to attain the peak by November. The CSI values clearly indicated that there are two spawning events in a year, namely the first one during April-May and the second one in December. Reproductive cycle was classified into the following successive stages: in female, multipication (January~February, June ~Setember), maturation (March~April, November), spent (May and December), degeneration and resting (June and January), and in male, multiplication January ~ february, June ~September), maturation (March~April, October~November), spent (May and December) and degeneration and resting (January and June). Histological observations revealed that oocytes in the ovary matured simultaneously in November and March. At the same time, the envelopes of matured testis became thinner than those in the early stage.

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A Case Study on the Effective Liquid Manure Treatment System in Pig Farms (양돈농가의 돈분뇨 액비화 처리 우수사례 실태조사)

  • Kim, Soo-Ryang;Jeon, Sang-Joon;Hong, In-Gi;Kim, Dong-Kyun;Lee, Myung-Gyu
    • Journal of Animal Environmental Science
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    • 제18권2호
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    • pp.99-110
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    • 2012
  • The purpose of the study is to collect basis data for to establish standard administrative processes of liquid fertilizer treatment. From this survey we could make out the key point of each step through a case of effective liquid manure treatment system in pig house. It is divided into six step; 1. piggery slurry management step, 2. Solid-liquid separation step, 3. liquid fertilizer treatment (aeration) step, 4. liquid fertilizer treatment (microorganism, recirculation and internal return) step, 5. liquid fertilizer treatment (completion) step, 6. land application step. From now on, standardization process of liquid manure treatment technologies need to be develop based on the six steps process.