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

• Parasites, Hosts and Diseases
• /
• 제21권2호
• /
• pp.209-218
• /
• 1983

간흡충(Clonorchis sinensis) 각기관의 미세구조와 그 기능에 관하여는 이제까지 많은 연구결과가 발표되어 왔으나 Laurer's canal에 대해서는 그 구조와 기능에 관하여 별로 보고된 바 없었으므로 저자는 이의 기능을 간접적으로 증명할 각종증거를 수집하기 위하여 광학현미경을 비롯하여 투사전자현미경 및 주사전자현미경을 이용하여 정자 및 난자의 주된 통로가 되는 수정낭, 정자관, 대수정관, 자궁 및 Laurer's canal 등을 면밀히 관찰하였다. 그 결과 자궁내에서도 부위에 따라 간욕적으로 정자가 관소되는 예는 있었으나 여러가지 정황으로 보아 자관이 정자의 주된 통로가 되지 않는다는 것은 명확한 사실이라 하겠다. 그렇다면 가능한 결론은 대량으로 생산 ·사정되는 정자들이 수정란에 도달하는 통로는 유일하게 Laurer's canal 뿐이라는 것이다. 이제까지의 관찰에 의하면 Laurer's canal은 잘 발달된 환상승섬유로 둘러싸여져 있으며 관내의 상피조직은 모종의 분필기능을 가지고 있는 것으로 사료되나 이에 관하여는 추후 자세한 연구가 요구되고 있다고 하겠다.

• The Korean Journal of Ecology
• /
• 제4권1_2호
• /
• pp.33-37
• /
• 1981

본 연구는 수양버들 꽃의 분해에 따르는 성분변화를 조사하기 위하여 행하였으며 얻어진 결과는 다음과 같다. 1. 수양버들 꽃의 분해는 매우 빠르기 때문에 분해 40일에는 그 완전한 형태를 알아보기 어려웠다. 2. 분해 40일후의 시료의 무게는 50%의 감소를 나타냈으며 작열소실량도 초기에는 급감하였다가 점차로 감소하였다. 3. 탄소함량은 초기 20일간에 반감하였으며 그 후 20일간도 급감하였다. 4. 총질소와 인의 함량변화는 초기에 완만하였으나 (초기 20일간) 그 후에는 급감하였다. 이상과 같은 현상은 수양버들 꽃이 수분. 질소. 인의 함량이 높을뿐 아니라 비교적 온도가 높기때문에 분해가 빠른것으로 사료된다.

• 대한임상검사과학회지
• /
• 제49권4호
• /
• pp.495-497
• /
• 2017

Thalassemia major is a genetic disorder with a defective synthesis of either the alpha or the beta chain of hemoglobin A. Blood transfusion is crucial for the survival in these patients. Unfortunately, endocrine dysfunction is a very common complication in these patients and is principally due to excessive iron overload as a result of frequent blood transfusions. Although regular blood transfusion may increase life expectancy, disturbances in growth and pubertal development, abnormal gonadal functions, impaired thyroid, parathyroid and adrenal functions, diabetes, and disorderly bone growth are common side effects. We hereby present a case of a 23-year-old, unmarried woman with beta thalassemia major presenting with primary amenorrhea, poor development of secondary sexual character, and short stature. Thorough history, clinical examination, and laboratory investigation, including dynamic function test (insulin tolerance test) were conducted. These tests confirmed that she had multiple endocrinopathies, including hypogonadotropic hypogonadism, growth hormone deficiency, and subclinical adrenal insufficiency, which were caused by iron overload. She required hormone replacement therapy. Early recognition of possible deficiencies in hypothalamo-pituitary-end organ hormones caused by iron overload in thalassemia patients that undergo frequent blood transfusion procedures is essential. Appropriate treatments, including transfusion regimen and chelation therapy, as well as specific treatment of each complication are the crucial for the successful management and improvement of quality of life these patients.

• 복식문화연구
• /
• 제18권5호
• /
• pp.824-841
• /
• 2010

In 21st century, subordinated relationship of fashion from the body has been disappearing, and fashion is understood as variable and creative field. This research aims at analysis about the relationship between the body and fashion depending on the theories about the authority and the desire. So, this utilizes between theoretical study and empirical analysis. For concentrated study, research period limits from 2000 to the present time 2010. Contemporary body and fashion have being changed into various forms and values, become complex and de-territory. Especially, body is symbol of ambivalence eroticism that gives point to sexual property, and the object of fetishism and machine having a desire. This study's purpose draw a parallel with between the limits of contemporary body that couldn't be rid of the capital and desire, and the liberty of fashion that escape from the body's influence has being changed independent and fluid space. This research's results are as follow as; contemporary de-territory fashion is expressed as 1) symbol of the object and physical material property, 2) self-transcendental instrument fashion, 3) independent spatial molding, 4) de-centering fashion.

• 산업융합연구
• /
• 제19권4호
• /
• pp.49-55
• /
• 2021

본 연구는 간호대학생을 대상으로 생명의료윤리에 대하여 분석한 국내연구의 동향을 파악하고자 하였다. 문헌조사에 사용된 검색엔진은 KISS, NDSL, RISS이었으며, '간호대학생'과 '생명의료윤리'를 주요어로 선정기준에 적합한 26편의 논문을 분석하였다. 생명의료윤리를 분석한 주요개념은 생명의료윤리의식이었으며, 태아생명권, 인공수정, 장기이식 등의 내용을 포함하였다. 또한 생명의료윤리의식은 대상자의 윤리교육경험(유무), 학년, 임상실습경험, 윤리교육 참여의사에 따라 차이가 있었으며, 생명의료윤리의식과 함께 분석된 주요 개념으로는 연명치료중단, 윤리적 가치관, 비판적사고, 성태도, 간호전문직관, 죽음에 대한 인식 등으로 나타났다. 이러한 결과는 향후 간호윤리교육 마련을 위한 기초 자료로 활용될 수 있을 것이다.

• Journal of Plant Biotechnology
• /
• 제44권4호
• /
• pp.454-461
• /
• 2017

본 연구는 좀나도히초미(Polystichum braunii (Spenn.) $F{\acute{e}}e$)의 효율적인 증식방법을 규명하기위해 기내 포자발아, 전엽체 증식, 기회 포자체 형성 등 단계별 배양조건을 찾고자 수행되었다. 포자 발아율과 초기 전엽체 발달은 무기물 함량이 적은 Knop 배지에서 41.2%로 가장 높았다. 전엽체의 증식 및 생식기관 형성을 위한 배지는 2% sucrose가 포함된 2 MS 배지였다. 또한 배양토 종류와 혼합비율을 달리하여 전엽체를 기외 이식한 결과, 원예용 상토와 마사토를 2:1 혼합한 배양토에서 재배하였을 때 포자체 형성이 276.3개/$7.5m^2$로 가장 많았다. 반면, 피트모스가 포함된 조건에서는 전엽체 증식 및 포자체 형성이 억제되었다. 포자체 육묘는 상토 단용처리구에서 재배하였을 때 생육이 가장 왕성하였다.

• Advances in Traditional Medicine
• /
• 제5권1호
• /
• pp.1-15
• /
• 2005

Ginseng is a popular medicinal plant highly valued throughout the world. Asian ginseng is one of the most common species of ginseng. It has long occupied a significant position in oriental medicine and has been justified its name as the 'king herb'. As a nutritional supplement, ginseng is an extremely common and popular herbal medicine in the United States and Canada in recent decades. The multiple constituents of ginseng possess equally multifaceted pharmacological actions as demonstrated by numerous studies. Ginseng root and its constituents influenced the central nervous system, endocrine, cardiovascular, gastrointestinal system, sexual, renal organ and immune system, etc. One important action is its anti-hyperglycemic effect. Previous studies on ginseng demonstrate that only the root of ginseng has been used in the treatment of diabetes, while the other parts of ginseng plant were always neglected. Recently, we analyzed the constituents of ginseng berry, leaf and discovered that ginseng berry, leaf extracts and its total ginsenosides have the ability to reduce hyperglycemia and body weight and increase the peripheral glucose utilization in obese or diabetic ob/ob or db/db mice. Our data suggest that all parts of ginseng plant, including root, berry, leaf and stem exhibit potent anti-hyperglycemic and anti-obese effects and may provide an opportunity to develop a novel class of anti-diabetic agents.

• 한국의류학회지
• /
• 제35권9호
• /
• pp.1085-1098
• /
• 2011

In the $21^{st}$ century, technology is a tool for the expansion of the five senses and physical ability that works as an element for posthuman identity. This study analyzes and theorizes on the characteristics of the posthuman body in fashion illustration. The method of this study analyzes documentaries about posthuman and fashion illustration. The results are as follow. Posthuman body types are classed as hybrid body, plastic surgery body, and digital body. The characteristics of the posthuman body are categorized as ultra- functional prosthetic, mythical undifferentiated, radical plastic surgery type and post-physical digitization type. The ultra-functional prosthetic type shows a restored body and upgraded functional body through a machine hybrid, cyborg suit and mannequin hybrid. It is a break from classical gender identity to form a nerve sense extension that displays physical and abstract power. The mythical undifferentiated type shows a therianthropic form, parts of an animal body, radical skin and gender bending. It represents the return to an undifferentiated world, the desire of a powerful being and the possibility of radical transformation. The radical plastic surgery type shows a photomontage of an ideal body, transgendered body, grotesque body marking, absence of partial or overall face organ and the expansion of abnormal body organs. It represents the expression of narcissism, unconscious desire, fantasy, fear and suggests an alternative ideality, sexual attachment and ambiguous gender identity. The post-physical digitization type shows an imperfect form or duplicated ego image through the omission of the body silhouette or detailed form, fragmented image using net, representative self like optical illusion using typography, an imperfect vague silhouette and immaterial body outline through the use of virtual light. It represents the lack of desire, narcissism, fluidity in a virtual space, the continued creation of a new self, ambiguous gender identity and the liberation of environment, sex, and race. Likewise, the posthuman in fashion illustration shows the absence of a species boundary, destruction of classical gender identity, a new personality and virtual self image.

• The Korean Journal of Ecology
• /
• 제21권1호
• /
• pp.27-33
• /
• 1998

Arisaema robustum, which has the ability to change sex, was studied in a temperate broadleaf forest of Sanseong-ri, Joongbu-myeon, Gwangju-gun, Kyonggi Province, Korea. \ulcornerThe study, carried out from 1993 to 1997, focused on population dynamics energy budget among organs, size distribution, mortality, the relationships between sex and size, seed production and germination rate. In terms of energy budget among the organs, the ratio of aboveground to belowground biomass was 36.6 : 63.4 in non-female plants, and 81.4 : 18.6 in female plants. Also, in female plants, the ration of leaf to sexual organ biomass was 39.5 : 41.9. Therefore, the belowground ratio of female plants was lower than that of non-female plants. Plants were classified into 8 levels relative to the amount of leaf area by $100cm^2$. The rates of the smallest and the largest classes were 49% and 1%, respectively, and population distribution by size was relatively stable. The mortality averaged 13.1% per year and decreased in inverse proportion to leaf size (6.6% in the smallest and 0.0% in the largest size classes). Leaf areas were $64.1{\pm}48.5cm^2$ in non-flowering plants, $232.1{\pm}123.9cm^2$ in males and $444.8{\pm}153.9cm^2$ in females. The increase rates of leaf area per year varied from 1.9% in plants changing from female tomale, to 152.4% in plants changing from non-flowering to female. But plants which remained female for 2 years showed a decrease of 34.7%. >From this result, it is thought that the female plants invest more energy to reproduction than to vegetative organs. The correlation coefficient (CC) value between plant size and the number of seeds produced (0.55) was larger than the CC value between plant size and total seed weight (0.73). That is, the larger the plant size, the heavier the seed produced. The germination rate increased along with seed weight, and it was 95% in plants which were over 60mg fresh weight/seed.