• 한국결정성장학회지
• /
• 제18권2호
• /
• pp.57-61
• /
• 2008

새로운 전복반형 진주 양식법으로 진주를 성장시킨 후 그 구조적 특징을 분석하였다. 본 양식법은 기존방법과는 달리 핵을 넣지 않고 패각의 특정 부위를 파괴시켜 전복 내장의 형상대로 진주층을 유도하는 방법으로 진주의 모양이 자연스럽고 독특한 광택을 나타내었다. 전계방사형 주사전자현미경으로 분석 결과 진주층은 약 $0.34{\mu}m$의 균일한 층이 패각 표면에 수직으로 배열됨으로써 패각 표면에 피라미드 상의 돌기가 규칙적으로 형성되어 전형적인 1매패(권패)의 전복진주 특성을 나타내었다. 이러한 특징은 최근 진주보석의 자연스런 형태를 추구하는 시대에 부합되어 고부가가치의 한국형 진주보석으로 성장할 수 있으리라 사료된다.

• 한국방사선학회논문지
• /
• 제14권3호
• /
• pp.253-259
• /
• 2020

유방촬영은 경제적이고 간편하며 미세석회화 검출에 효과적이라는 장점이 있으나, 유방은 감수성이 높은 장기이므로 확률적 영향에 의한 암 발생 위험을 동반한다. 이를 최소화하기 위해 정확한 유방 선량 평가가 필요하나, 현재 유방선량 평가는 일반여성들에게 한정되어 유방성형술 환자에게는 제한적이다. 본 연구는 유방성형환자의 정확한 선량 평가를 위하여 유방 보형물이 삽입된 모의피폭체를 구성하여 관전압에 따른 선량변화를 알아보고자 하였다. 그 결과, 유방 보형물이 있는 경우, 보형물이 없을 때의 선량보다 낮은 결과를 나타내었다. 검사 시 관전압 조건에 따른 선량 분포는 보형물의 유·무와 관계없이 관전압이 높아질수록 선량이 높아지는 양상을 보였다. 추후 본 연구를 통해 유방성형환자의 선량 관리 측면의 진단참고 수준 확립을 위한 기초적인 자료로서 활용 가능할 것으로 사료된다.

• 한방안이비인후피부과학회지
• /
• 제29권3호
• /
• pp.14-26
• /
• 2016

Objectives : This study was performed to investigate the protective effects and mechanisms of Salvia miltiorrhizae Radix extract (SME) on endotoxin shock.Methods : We used two models; LPS-induced sepsis model for in vivo model, and murine peritoneal macrophages responses for in vitro. SME was administrated orally to mice. After 1 hr, LPS was injected intraperitoneally. Survival rate was checked each time per 12 hr for 5 days. Mice were sacrificed 3 hr after LPS injection, then blood samples and organs were harvested. Cytokines secretion was measured by ELISA. Organs tissues were observed with microscope. Murine peritoneal macrophages were cultured for 1 hr either in a medium alone or in a medium that contained SME, as indicated. Then, the cells were treated with LPS for 24 hr. mRNA levels of cytokines were measured by real-time RT-PCR. Cytokine levels in the supernatants were measured by ELISA. The amount of nitrite was measured by using the Griess method to evaluate NO production. The cell lysates were analysed by Western blotting using antibodies for iNOS and β-actin was used as an internal control to monitor equal protein loading.Results : SME improverd the survival rate of mice model. SME inhibited the secretion of inflammatory cytokines and organs damages on Endotoxin Shock model. SME suppressed cytokine expression, cytokine secretion,NO production, iNOS expression in LPS-induced murine peritoneal macrophages.Conclusions : The results suggest that SME has protective effects on endotoxin shock through suppression of inflammatory cytokines, organ damages, NO production and so on.

• 한국어병학회지
• /
• 제16권1호
• /
• pp.13-21
• /
• 2003

The infection characteristics with scuticociliates at on-land rearing farms and hatcheries of flounder, Paralithys olivaceus was investigated during the year of 2001 by juvenile infection routes. When culture tanks for living food organisms such as chlorella, rotifer, and Artemia were searched, scuticocilates were detected both in live and dead rotifer, and at the dregs of culture tank bottoms at almost hatcheries. When rotifer infected with scuticocilates fed on fish larvae, lots of scuticocilate were inhabited at the bottom of fry rearing tanks. After feeding on scuticocilates-infected rotifer on fish larvae, first infection was detected at 10 days after bottom dwelling or 40 days old after hatching. By histopathological examination we confirmed the infection route of eyeball or brain contamination was that the ciliate worms digged through mouth and front part of the dosal fin cuticle, transferred into eyeball along the epithelium and muscle tissue, and reached finally into brain by the muscle and nerve tissue. The infection of internal organs was clarified into two routes. The first route was started from the infection at ventral and anal fin rays by the worms, and reached at the anus and rectum through the epithelium and muscle tissue. The second route was initiated from the infection at urinary organ and reached into the rectum epithelium cells, inner wall of intestine, abdominal cavity, pancreas, kidney, and pancreas. At seed production farms where fish larvae fed on scuticocilate-free rotifer, the worms were not detected not only at the food organisms culture tanks and juvenile rearing tanks but also larval flounder less than 7cm in total length.

• 한국축산식품학회지
• /
• 제34권2호
• /
• pp.141-150
• /
• 2014

This study was conducted to determine the effects of hempseed (H) on performance, carcass traits, and antioxidant activity in Japanese quail (Coturnix coturnix japonica). A total of 192 quail with seven-days old were divided into four experimental groups with four replicates. The treatments were; i) Control diet (C, no hempseed); ii) 5% hempseed in diet (H5); iii) 10% hempseed in diet (H10); and iv) 20% hempseed in diet (H20). The body weight (BW) and feed intake (FI) of quail was determined at 7, 21 and 42 d of age. At 42 d of age four quail were slaughtered and the carcass and internal organ traits were determined. Malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), nitric oxide (NO) and total protein were determined in the blood serum end of the experiment. The BW of the groups were not significant at 7 and 21 d, however in the 20% hempseed group BW decreased at 42 d (p<0.05). The FI and feed conversion ratio were not significant among the treatment groups. The carcass, liver, intestine and heart weight and their percentage to carcass were significantly differ in treatment groups (p<0.05). The serum MDA and NO decreased in hempseed addition (p <0.001). The serum SOD, CAT and GSH-Px were increased by hempseed supplementation (p<0.001). In conclusion, hempseed supplementation to quail diets may not improve quail performance traits but increase antioxidant activity in blood.

• 여성건강간호학회지
• /
• 제8권2호
• /
• pp.177-189
• /
• 2002

Sexual health education for the patients is an independent function as well as a professional responsibility of nurses. Education should be based on the needs of patients in order to be successful and effective. Therefore nurses must identify sexual health education needs of their patients. A sexual health education protocol for hysterectomy patients was developed by the researcher for this study and included physiosexual and psychosexual topics as well as the topic of sexual interaction. The subject pool was composed of 108 post op total hysterectomy patients who had undergone doing a hysterectomy 5 to 10 days previously at 5 hospitals located in the Seoul and Kyunggi-do area from July 23 to September 30, 2001. The questionnaire was composed of 60 items on sexual health education and used a Likert-type 4-point scale. Internal consistency of this questionnaire in this study was cronbach's $\alpha$=.9495 for sexual health educational needs. For data analysis, the study executed a t-test, ANOVA, and Duncan's Test, in accordance with the purpose of the study using SPSS/PC Win 10.0. The results were as follows: The need for education was highest in the psychosexual area (3.38 point) with education related to sexual interaction the lowest (3.20 point). Osteoporosis (3.75 point) was ranked overall as the highest area of educational need. The degree of educational need varied in correlation with other characteristics of the patients including age, status of marriage, duration of marriage, religion, academic career, monthly income, occupation, the number of children age of menarche, menstruation, other diseases except gynecological disease, previous genital organ operation experience, disease discovery method, pre-explanation for the hysterectomy, average sexual intercourse frequency, how to acquire sexual health information and previous sexual health education (p<.05). In conclusion, the degree of sexual health education needs of hysterectomy patients was very high. Therefore, sexual health educational programs planned according to characteristics of the participating women is necessary.

• Asian-Australasian Journal of Animal Sciences
• /
• 제22권4호
• /
• pp.550-556
• /
• 2009

This study was designed to evaluate the effects of dietary prebiotic (mannan oligosaccharide = MOS) and probiotic (Saccharomyces cerevisiae = SC) in finishing turkey diets on carcass, cut yield, meat composition and colour. A total of 72 ten-weeksold Big6 male turkey poults were used in the trial. There were eight replicate floor pens per floor with three birds in each. The experiment lasted up to 20 wks of age. The trial was set up as a completely randomized design with 3 dietary treatments. The treatments were: i) negative control (C, no additive); ii) MOS 1 g per kg of diet and iii) SC 1 g per kg of diet (strain SC47, $300{\times}10^{10}$ CFU/kg). Body weight (BW) and feed intake were determined for each of the two week intervals. Twenty-four birds were slaughtered and eviscerated to determine carcass, carcass parts and internal organ weights at 20 wks of age. Meat colour and pH levels were measured 24 h after slaughter. The dietary treatments did not affect BW and average daily gain during the trial (p>0.05). The average daily feed intake and feed conversion ratio of turkey toms fed with MOS were higher than those of control and SC groups during the overall period (p<0.05). The dietary treatments did not affect carcass yield, breast meat, thigh, wing, liver, heart, empty gizzard, intestine, and abdominal fat pad proportions and meat pH, composition and pigmentation (p>0.05). These results suggest that the addition of MOS and SC is not likely to produce any performance or carcass characteristics in finishing turkeys at 10 to 20 wks of age.

• Asian-Australasian Journal of Animal Sciences
• /
• 제26권5호
• /
• pp.705-710
• /
• 2013

This study was conducted to determine the effects of three different fat sources and their combination on growth performance, carcass traits and intestinal measurements of broiler chickens reared to 42 d of age. Two hundred day-old male broiler chicks (Ross 308) were randomly assigned to one of five treatments with four replicates of 10 chicks based on a completely randomized design. The dietary treatments consisted of 4% added fat from three different sources and their combination as follows: T, diet containing 4% tallow; CO, diet containing 4% canola oil; SFO, diet containing 4% sunflower oil; TCO, diet containing 2% tallow+2% canola oil; TSFO, diet containing 2% tallow+2% sunflower oil. Dietary fat type affected significantly BW and gain as well as feed efficiency in birds fed the TCO diets compared with those fed the other diets. Dietary fat type also modified meat yield, resulting in a higher breast and drumstick yields in the birds fed TCO and TSFO diets, respectively. Most of internal organ relative weights and small intestine measurements were not influenced by dietary treatments, except for the abdominal fat pad weight that was lower in birds fed SFO and for small intestinal length that was influenced by fat source. Results from the current study suggested that the supplementation with a combination of vegetable and animal fat sources in broiler diet supported positively growth performance and carcass parameters.

• Asian-Australasian Journal of Animal Sciences
• /
• 제14권12호
• /
• pp.1741-1746
• /
• 2001

An experiment was conducted at the experimental duck farm of Cantho University to determine the effects of feeding duckweed (Lemna minor) that completely replaced commercial protein supplements in diets for crossbred meat ducks. The experiment included five treatments, with four replicates and ten crossbred ducks per replicate (pen). The five diets were based on broken rice offered ad libitum, supplemented with either 27 (control, SB100), 19 (SB70), 15 (SB55), 12 (SB40) or zero (SB0) g/day of ground, roasted soya beans, with fresh duckweed supplied ad libitum, except for the control (SB0) treatment. A vitamin / mineral premix and salt were included in the control (SB100) diet, but not in the diets with duckweed. These diets were fed to growing crossbred meat ducks (Czechoslovak Cherry Valley hybrids) from 28 to 63 days of age, when two birds (one male and one female) per pen were slaughtered for carcass evaluation. Total daily intakes were 95, 108, 108, 105 and 107 g of dry matter (DM) (p<0.001) and daily live weight gains 26.1, 29.1, 28.3, 27.1 and 27.6 g (p<0.001) for the SB100, SB70, SB55, SB40 and SB0 diets, respectively. Corresponding feed conversion ratios (FCR, dry matter basis) were 3.63, 3.71, 3.82, 3.89 and 3.88 kg feed/kg gain, respectively. There were no significant differences in carcass yields, chest and thigh muscle weights, and internal organ weights between the ducks fed the control diet and those fed duckweed diets. Fresh duckweed can completely replace roasted soya beans and a vitamin-mineral premix in broken rice based diets for growing crossbred ducks without reduction in growth performance or carcass traits. If the duckweed is grown on farm, and managed and harvested by household labour, the saving over purchased protein supplements is up to 48%.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권9호
• /
• pp.5371-5374
• /
• 2013

Objective: Photodynamic therapy (PDT) is an emerging therapeutic procedure suitable for the treatment of cervical cancer. However, the side effects of PDT are severe, including skin ulceration, so we designed an experiment to examine the effects of multiple low-dose photodynamic therapy of 5, 10, 15, 20-tetrakis(1-methylpyridinium-4-yl) porphyrin (Tmpyp4) on tumour growth by utilizing a model in nude mice implanted with Hela cervical cancer cells. Materials and Methods: Female BALB/c nude mice (aged 5-6 weeks, weighing 18-20 g) were used. Hela cervical cancer cells were injected subcutaneously ($1{\times}10^7cells/200{\mu}L$). Ten days after injection, the mice were divided into three groups (n=6), the A group of controls without any treatment, the B group receiving a single-treatment with Tmpyp4 (10 mg/kg, intratumor injection) and irradiation (blue laser, $108J/cm^2$), and the C group given three-treatments with Tmpyp4 (10 mg/kg, intratumor injection) and irradiation at intervals of two days. After starting treatment, tumours were measured every two days, to assess growth. At 2 weeks after the last treatment of C group, tumour tissue and organs were collected from each mouse to evaluate tumor histology and organ damage. Results: Tumour growth in C group was significantly inhibited compared with A and B groups (P<0.05), without any injury to the skin and internal organs. Conclusion: Our novel findings demonstrated that multiple low-dose photodynamic therapy of Tmpyp4 could inhibit cervical cancer growth significantly with no apparent side effects.