• 한국동물위생학회지
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• 제39권4호
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• pp.239-246
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• 2016

The prevalence of Coxiella burnetii in native Korean goats in Jeonbuk province was investigated using ELISA (sera) and PCR (vaginal mucus). A total of 798 blood samples from 189 farms were collected in 2013 and 2015. Seroprevalence was 13.6% in 2013 and 15.7% in 2015. Tracking survey of six seropositive farms on the prevalence of C. burnetii was conducted. 137 (41.4%) out of 331 goats were seropositive and 47 (17.6%) out of 267 goats were positive in PCR. The higher seropositivity observed in adult goats and female goats significantly, the seroprevalence of C. burnetii was higher as age increased (<1 y=13.2%~${\geq}5$ y=100%)(P<0.05) and female goats (44.8%) was higher than male goats (24.1%) on the seroprevalence (P<0.05). 21 (7.9%) goats positive in PCR was seronegative. The prevalence of C. burnetii in native Korean goats in slaughter house was 30.0% in ELISA and 11.5% in PCR. Significantly, female goats (62.8%) was higher than male goats (12.3%) on the seroprevalence (P<0.05). Based on these data, C. burnetii was easily exposed in domestic animals: native Korean goats-related areas such as farms and slaughter house.

• 가정과삶의질연구
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• 제25권6호
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• pp.1-13
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• 2007

The purpose of this study is to examine the college students' and married adults' perceptions of the current low fertility and their motivations of parenthood. It also verifies the gender differences in the numbers of planned children between male and female college students. The sample population included 100 unmarried undergraduate students and 100 married adults. The measurements included in the questionnaire were based on recommendations from the literature review. The major findings of this study are as follows: Women reported higher levels of traditional-normal and altruistic-emotional motivations of parenthood than men did. College students reported higher levels of motivations of parenthood to strengthen biological family ties than married adults did, while adults reported higher levels of martial bond-strengthening, traditional-normal, and gene-preservative motivations of parenthood than students did. College students attributed the current low fertility to the tight labor market and high costs of childbirth and rearing while married adults attributed to gender-discriminating traditional family norms, increasing infertility, and poor conditions of pregnancy and childbirth. Female and adult respondents took the social problems caused by the current low fertility more seriously than their counterparts did.

• International Journal of Industrial Entomology and Biomaterials
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• 제18권1호
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• pp.1-7
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• 2009

Quality of seed in the mulberry silkworm, Bombyx mori (L.) is determined by many important factors, wherein unfertilized eggs play an important role. Unfertilization of eggs are caused by several reasons such as, abnormality in the sexual organs of the male and female, abnormal development of the micropylar end of the egg, unfavorable environmental conditions during spinning, cocoon preservation, imperfect handling of moths, mating, ovipostion, cold storing of pupae / moths and indiscriminate use of male moths etc. Though the presence of unfertilized eggs would in no way affect the fertilized ones and their quality directly, the frequency of their occurrence underrates the quality and brings down the hatching percentage. Lower the occurrence of unfertilized eggs, higher is the rating of seed quality. Of the various intrinsic and extrinsic factors and events involved in egg deposition of an adult silk moth, mating is an instinct and a biological obligation for the ultimate perpetuation of the species and a must to provide stimulus for oogenesis and bring about biochemical changes in the spermatophore of the silkworm in order to ensure the presence of sufficient number of normal sperms and testicular fluid in the female reproductive organ, activating ovulation and accelerating oviposition behavior and egg deposition. An attempt has been made in this article to briefly elucidate the characteristics of unfertilized eggs, causes of their occurrence and its impact as well as the significance in silkworm seed production.

• 한국발생생물학회지:발생과생식
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• 제2권2호
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• pp.135-140
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• 1998

Protease nexin-1 (PN-1)은 활성화 자리에 serine기를 갖는 단백질 분해 효소 즉, 트롬빈, 트립신, 플라스미노겐 활성화 효소 등의 작용을 억제한다. 본 연구에서는 흰쥐의 Sprague-Dawley계통을 이용하여 조직별 mRNA발현여부 및 정도를 조사하였다. PN-1의 발현이 나타난 조직은 뇌 (전뇌, 후뇌), 심장, 간, 폐, 난소, 난관 등이다. 이들 중 유전자 발현이 가장 높은 조직은 암컷의 전뇌(forebrain) 였다. 특히, 생식기관들 중에서는 암컷의 난소와 난관에서만 발현이 관찰되는 등 PN-1 유전자는 성별에 따라 서로 다르게 발현됨이 확인되었다 이러한 결과들로 미루어 PN-1은 여포 형성과정과 초기배 형성과정 등의 생식 및 발생작용과 관련이 있을 것으로 생각된다.

• Journal of Chest Surgery
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• 제17권4호
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• pp.729-734
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• 1984

Bochdalek hernia is a type of congenital diaphragmatic defect in the posterolateral portion of the diaphragm. The defect is usually Lt. sided due to protective effect of liver on right. Sex distribution is male preponderance [2:1] and it is diagnosed during neonate, mostly first 24 hours, due to severe respiratory distress. We experienced a rare case of old aged female patient with congenital Bochdalek hernia on Rt. side which was found incidentally during treatment of spontaneous pneumothorax of Rt. side. 17 year old female patient was admitted to CS department for chest discomfort on right and mild dyspnea with duration of 20 days. Under the diagnosis of spontaneous pneumothorax, Rt. closed thoracostomy and underwater sealed drainage with continuous suction was applied. On follow-up chest x-ray, poorly defined hazy increased density with multiple air-fluid levels in Rt. lower lung field and Lt. subphrenic free air were noted. So, Barium enema was done under the impression of Rt. diaphragmatic hernia, and nearly entire colon proximal to sigmoid was demonstrated in the Rt. hemithorax. Operation was done-for surgical repair of defected diaphragm through Rt. posterolateral thoracotomy. Operative findings were as follows; 1.Hypoplastic Rt. lung, esp. RML & RLL. 2.Nearly entirely intestines were herniated. 3.Diaphragmatic defect was located on posterolateral portion of the diaphragm, about 10x3cm in size with blunt smooth margin. 4.A large bleb on apex of RUL of lung. Herniated intestines were repaired into abdominal cavity manually and defect of diaphragm was repaired with No. I black silk interrupted sutures directly, and bleb was resected. Postoperative courses were uneventful and the patient was discharged with good condition on POD 14th.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제18권4호
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• pp.718-725
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• 1996

Histiocytosis X is the abnormal proliferation of histiocytes and usually a massive aggregation of eosinophilic leukocytes. The clinical features and prognosises of subclasses of histiocytosis X depend on the severity and extent of the organ involvement. The subclasses include Letterer-Siwe disease(Acute disseminated histiocytosis X), eosinophilic granuloma, Hand-Schuller-Christian disease. Letterer-Siwe disease(acute, subacute form) refers to the form of disease that is most often fatal because of the widespread skeletal, extraskeletal lesion ; this usually affects infants and children less than 3 years of age. Eosinophilic granuloma(histiocytosis X, localized) refers to a chronic form of disease with skeletal lesion ; It usually affects children and young adult. Hand-Schuller-Christian disease(chronic form) refers to a chronic form of disease with skeletal, extraskeletal lesions. It usually affects children over the age of 3 years. In our hospital, 8 year old female patient visited complaining of hard swelling of mandibule body, left side and 6 year old female patient visited complaining of painful swelling of mandibular angle, right side. We diagnosed eosinophilic granuloma and curetted the lesiones and refered to Dept. pediatrics for chemotherapy. We present 2 cases to you with literatures.

• 한국환경보건학회지
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• 제33권6호
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• pp.513-516
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• 2007

This investigation was intended to find out the estrogenic effect of chlortetracycline (CTC) on vitellogenin induction in adult male Japanese medaka (Oryzias latipes). Vitellogenin (Vtg) produced in male fish has been used to as one of a biomarker of endocrine disrupters. The positive control was $17{\beta}-estradiol$ (E2) that induced Vtg in male fish. As a result, male and female fish were exposed to 0.1, 1, 10 and 100 ppm of CTC. Western blot results showed approximately 205 kDa, that is similar to myosin at high molecular weight range Sigma maker. Vtg band was showed fainted to 10 and 100ppm for chlortetracycline. Vtg concentration of CTC was qunatified by total protein quantification and ELISA. Exposure of the male fish to CTC of 0.1, 1, 10 and 100 ppm produced Vtg concentrations of 0.24, 0.12, 7.61 and 40.02%o, respectively, that value was elevated than control male fish (0.14%o). CTC exerted as a Vtg inducer in male fish from 10 ppm, but it was a reducer in female fish from 0.1 ppm level. The results say that vitellogenin induction patterns alter in male medaka treated with CTC, and that CTC may caused endocrine disruption in fish.

• Animal cells and systems
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• 제3권4호
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• pp.369-374
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• 1999

The life history and development of Tetrastichus sp. parasitizing fallwebworm pupa in Korea were studied. The mean lifetime fecundity was 94.7 with a maximum of 125, and the portion of female progeny averaged 90.3%. A male and a female lived for an average of 19.8${\pm}$4.5 and 21.7${\pm}$4.2 days, respectively. The duration of development for each stage was as follows: egg, 2 d; the 1st instar larva, 2${\pm}$1 d; the 2nd instar larva, 2${\pm}$1 d: the 3rd instar larva, 3${\pm}$1 d; the 4th instar larva, 6${\pm}$2 d; and pupa, 8${\pm}$2 d. Total developmental duration from hatching of the larva to adult emergence required 21.1${\pm}$3.7 d, and females took 1-2 days more than males in the incubator (28$^{\circ}C$, 70% RH, and 16:8 LD).

• 근관절건강학회지
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• 제9권1호
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• pp.53-67
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• 2002

Osteoporosis is a age-related metabolic disorder. Currently there is no cure, but there are measures that can prevent or deter the development of osteoporosis. Futhermore lifestyle among risk factors of osteoporosis may be modifiable. Osteoporotic preventive health promotion behavior may be more effective at early adult when make formation of peak bone mass. The purpose of this study was to identify of relation between the demographic variable, osteoporosis-related lifestyles and the health promotion behavior of University and College Female Students. The results were followed: 1. Demographic variables according to the health promotion behavior were significantly difference with age, body height, religion and income. 2. Osteoporosis-related lifestyles according to the health promotion behavior were significantly difference with element school milk intake, current milk intake, exercise and caffeine intake. 3. Health promotion behavior was positively correlation with age, body weight, height income, element school and current milk intake and exercise.

• Journal of Oral Medicine and Pain
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• 제18권1호
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• pp.107-117
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• 1993

The author has taken intraoral standard films by the paralleling technique of 6414 teeth in 838 patients ranged from early twenties to early sixties and analysed the change of pulp cavity in the mandibular posterior teeth by ageing. The obtined results were as follows : 1. There was no significant difference between the right and left teeth. 2. The degree of change of pulp cavity in female was higher than that in male. 3. The change of pulp cavity was increased by ageing. 4. The correlation between the degree of change of pulp cavity inmandibular posterior teeth (X) and age (Y) were : Male 1st premolar Y=13.22X3.37+ r=0.79 2nd premolar Y=12.09X+3.65 r=0.79 1st molar Y=11.90X+1.25 r=0.78 2nd molar Y=10.51X+10.43 r=0.83 Female 1st premolar Y=13.66X-2.49 r=0.86 2nd premolar Y=13.63X-2.42 r=0.86 1st molar Y=12.42X-1.44 r=0.79 2nd molar Y=11.42X+5.91 r=0.84