• Title/Summary/Keyword: hair root

Search Result 109, Processing Time 1.246 seconds

추락답토양(秋落沓土壤)에 생육(生育)한 수도(水稻)에 대(對)한 가리(加里)의 효과 (Effect of Potassium on Rice Plant Growth on an Akiochi Soil)

  • 박영대;김영섭;박천서
    • 한국토양비료학회지
    • /
    • 제3권1호
    • /
    • pp.11-16
    • /
    • 1970
  • 추락(秋落)에 $SiO_2$와 Mn을 시용(施用)하고 K를 시용(施用)치 않으면 수도(水稻)의 생육(生育)이 조해(阻害)되며 분얼 수가 현저히 감소 된다. K를 시용(施用)치 않은 수도(水稻)는 엽(葉)에 작은 적갈색(赤褐色)의 반점(斑點)이 발생(發生)하였고 엽색(葉色)은 농록색(濃綠色)이 였다. 간장(稈長)은 건전도(健全稻)보다 짧으나 출수(出穗)는 건전도(健全稻)보다 빨렀다. K를 시용(施用)한 수도(水稻)의 근(根)은 굴고, 길고 새뿌리가 나오나 K를 시용(施用)치 않은 수도(水稻)의 근(根)은 생육(生育)이 불량(不良)하고, 가늘고 근부(根腐)가 심(甚)하였다. K를 시용(施用)치 않은 수도(水稻)의 근부현상(根腐現狀)은 "농림육호(農林六號)"보다 "진흥(振興)"이 더 심(甚)하였다. K를 시용(施用)치 않은 수도(水稻)의 생육(生育)은 불량(不良)하나 N, P, $SiO_2$, Fe 및 Mn 함량(含量)은 K를 시용(施用)한 수도(水稻)보다 높다. 추락도(秋落稻)의 Fe 함량(含量)은 $Mn+SiO_2$의 시용(施用)으로 현저히 감소되나 K의 시용(施用)으로도 감소된다. 따라서 $Mn+SiO_2$를 시용(施用)한 무가리(無加里)의 추락답(秋落畓)에 생육(生育)한 수도(水稻)의 근부(根腐)는 K 결핍(缺乏) 때문이며 $Mn+SiO_2$나 K의 시용(施用)은 추락도(秋落稻)의 Fe 함량(含量)을 감소시킨다.

  • PDF

현대패션에 나타난 이질적 융합 디자인과 지각(知覺)작용 - Henri Bergson의 시각을 중심으로 - (Heterogeneous Fusion Design and Perceptive Action in Contemporary Fashion - Focusing on the perspective of Henri Bergson -)

  • 김영선;금기숙
    • 복식
    • /
    • 제58권10호
    • /
    • pp.78-94
    • /
    • 2008
  • Contemporary fashion is experiencing a rise in design that combines heterogeneous things, or goes beyond the roles, boundaries, and meanings of existing things. This can be described as a 'heterogeneous fusion' that is different in character from the mixed use of heterogeneous materials, borrowed designs, and exaggeration of the silhouette that have been practices in fashion design, or the non-structure, deconstruction, and recombination that have existed since the age when post-structuralism was a central philosophy. This 'fusion' causes a 'confusion' of the generally accepted mental principle of 'one sense reacting to one stimulus', and breaks the boundary between the various senses, causing confusion in the senses of the individual, and leading him or her to experience unfamiliar feelings. In this process, all information received from external sources is not perceived as it is seen, but rather is perceived through a fusion of the individual's motivations, the environment in which it is perceived, the resulting change in emotion, and the individual's past memories. The combination of these heterogeneous elements visually accepted, or such a non-territorial combination acts as a 'fusion of senses' in the individual's perception, which causes confusion in the homeostasis of perception, and a change in emotion, and serves as a factor that causes the information to be stored in the memory for a long time. In parallel with deconstruction or non-structure, the 'heterogeneous fusion' found in modern fashion is taking root as a representative creative trend, and is represented in various forms such as the mixed use of subjects and materials, non-territorial borrowing, fusion with animal forms, fusion with non-physical geometry, and fusion with heterogeneous hair decoration.

실험적 돼지 삼출성 표피염에 관한 병리학적 연구 I. 육안적 및 병리조직학적 관찰 (Pathological studies on exudative epidermitis in experimentally infected pigs I. Macroscopical and histopathological observations)

  • 오규실;이차수
    • 대한수의학회지
    • /
    • 제34권4호
    • /
    • pp.787-799
    • /
    • 1994
  • To elucidate morphologic lesion of porcine exudative epidermitis which is occurred sporadically in Korea, Staphylococcus hyicus subsp. hyicus isolated from the naturally affected pigs was inoculated to suckling pigs. The infected piglets were observed grossly and histopathologically. Although affected piglets were taking acute, subacute, or chronic course, some piglets suffered from chronic disease showed poor prognosis and marked growth depression. Affected peglets had erythematous skin on the face, ear, and abdomen and these localized lesions appear as brownish spots of exudative epidermitis and fromed crust in the early stage. But, after this stage, the skin were covered by viscous greasy exudate and formed blackish brown crust and appeared fissures and hypertrophy. Grossly, there has been hemorrhage with the removal of crust-like materials of epidermis and edematous subcutis. The superficial lymph nodes were edematous and swollen or congested and hemorrhagic. Some piglets had swollen ureters, cysts in the renal cortex, or polyarthritis. A few cases had mild edematous swelling of kidney, intestinal catarrh and congestion of brain. Microscopically, skin lesions had detachment of keralinized layer and parakeratosis of epidermis, hydropic degeneration of epidermal cell, and retrogressive degeneration of hair root sheath. Dermis had edema, and infiltration of neutrophils and mononuclear cells. As the disease was proceeded, there was marked perivasculitis with lots of mononuclear inflammatory cells. More chronic lesions formed granuloma-like bodies(nodules) due to more mononuclear, perivascular inflammatory cell infiltration and proliferation of fibroblast. Lots of plasma cells and eosinophils were also present in dermis. Epidermis was hyperplastic by proliferation of basal cells stratum germinativum and epidermal pegs often extended into the dermis. In secondary infection, lots of neutrophils could be seen in epidermis and derms. Kidney had neutrophilic infiltration, necrotic and cystic glomeruli, and dilation of renal tubules and ureters. Purulent arthritis was sometimes observed in joints. Three days old mice administrated Staphylococcus hyicus subsp hyicus subcutaneously before had focal congestion and hemorrhage, necrosis, and subcutaneous edema of the skin. This observation was also seen in the study of mice administrated exfoliatin toxin of Staphylococcus which evoked human staphylococcal scalded skin syndrome.

  • PDF

삼종(三種) 황연류(黃連類)의 기관지(氣管支) 평활근(平滑筋) 이완효과(弛緩效果)에 관(關)한 연구(硏究) (The Effect of Three kinds of Coptis Rhizoma on the Contraction of Isolated Rat Tracheal Smooth Muscle)

  • 서영철;임성우;신길조;이원철
    • 한국한의학연구원논문집
    • /
    • 제2권1호
    • /
    • pp.236-254
    • /
    • 1996
  • This study was carried out to investigate the tracheal muscle relaxation of water extracts of three kinds of Coptis rhizoma and also compare their effects with berberine and palmatine, which are the important alkaloid components of Coptis rhizoma, in isolated rat tracheal smooth muscle. As a result Coptis chinenis showed significant tracheal muscle relaxation on KCI-induced contraction and more markedly on carbachol-induced contraction in dose-dependent manner. Coptis japoinin exhibited also tracheal muscle relaxation on both contraction with slightly weaker activities than those of Coptis chinensts. The activities of the root hair of Coptis chinensis were the most weakest in three rhizomas. Berberine and palmatine had strong tracheal muscle relaxation, especially, on carbachol-induced contraction, however, their activities on KCI-induced contraction were weaker than that of Coptis chinenis. The inhibitory effects of three kinds of Coptis rhizoma on the contraction by KCI and carbachol were investigated to explain the process of their tracheal muscle relaxation. All rhizomas inhibited the contraction by both agents, among them, Coptis japonica showed the most significant effect, so indicating that the tracheal muscle relaxation of Coptis rhizoma may be concerned with the blocking of muscarine receptor and $Ca^{2+}$channel.

  • PDF

FoLT-PCR에 의한 유전자형 (HumTH01, HumTPOX, HumCSF1PO & Amelogenin) 분석 (Quadruplex Genotype Analysis at HumTH01, HumTPOX, HumCSF1PO and Amelogenin Loci by FoLT-PCR)

  • 이양한;임시근;강필원;최동호;윤송노;한면수
    • 분석과학
    • /
    • 제12권3호
    • /
    • pp.260-264
    • /
    • 1999
  • 법적시료(Forensic Evidences)로 사용되는 혈흔, 정액반, 타액반 및 모발을 DNA의 분리과정 없이 FoLT (Formamide Low Temperature) PCR법으로 DNA의 특정부위를 분석하고자 하였다. FoLT PCR법으로 3종류의 STR(Short Tandem Repeat) 좌위와 성별을 확인하는 Amelogenin gene을 PCR법으로 동시에 분석하기 위하여 formamide농도와 annealing온도를 검토한 바 최적의 formamide농도는 8%(v/v)이었고 annealing온도는 $48^{\circ}C$이었다. 그리고 1% Triton X-100을 이용하여 시료를 세척한 경우에 증폭 효율이 증가하였다. 따라서 FoLT-PCR법을 이용한 경우 DNA를 분리하기 위한 전처리없이 소량의 시료를 기존의 PCR법보다 빠른 시간내에 한번의 PCR 및 전기영동으로 HumTH01, HumTPOX, HumCSF1PO 및 Amelogenin을 동시에 분석할 수 있었다.

  • PDF

악성 증식성 모낭 종양 - 증례 보고 - (Malignant Proliferating Trichilemmal Tumor - A Case Report -)

  • 홍기도;김재영;하성식;심재천;조혜제;최윤호
    • 대한골관절종양학회지
    • /
    • 제15권1호
    • /
    • pp.65-68
    • /
    • 2009
  • 증식성 모낭 종양은 모낭 말단부위의 외근모초에서 기원하는 드문 종양이다. 악성 변화는 드물지만 갑작스러운 크기의 증가, 침윤성 성장 및 두피 이외에서 종양의 발생 등은 악성 증식성 모낭 종양을 시사한다. 병리조직학적으로 핵의 이형성, 다형성 및 유사분열 소견은 악성증식성 모낭 종양의 특징이다. 악성 증식성 모낭 종양은 재발 및 전이가 보고되고 있어 정상조직을 포함한 충분한 절제와 추적관찰이 요구된다. 53세 남자 환자의 우측 제 5수지 원위 지골에 7년전 발생한 종양을 중위 지이하 절제술 후 병리조직검사상 악성 증식성 모낭 종양으로 진단되었고, 환자가 외래로 더 이상 방문하지 않아 재발과 전이를 확인할 수 없었다.

  • PDF

가정내 응급처치를 위한 민간요법 (Folk Remedies for First Aid at Home)

  • 강현숙;조결자
    • 동서간호학연구지
    • /
    • 제3권1호
    • /
    • pp.17-26
    • /
    • 1998
  • The purposes of this study were to identify the contents, frequency of use, and the rationales of folk remedies frequently used for first aid at home for stomachache, vomiting, strain, food poisoning, vaginal bleeding, or wounds of snake or dog bite, or bee sting. As the method of the study, data were collected by conducting a questionnaire of 185 persons, who filled it out or who were interviewed from May to August in 1998. The collected data was analyzed by using frequency and the rationales for the contents of the folk remedies were described base on literatures. The results were as follows,. 1. The folk remedies for stomachache in frequency order were 'warming the abdomen', 'rubbing the abdomen with a hand', or 'pricking a finger to bleed', which have the rationals. 2. The folk remedies for vomiting in frequency order are 'drinking water of watery radish' and 'pricking a finger to bleed', which have the rationales. 3. The folk remedies for strain in frequency order are 'soaking the affected area into cold water or applying an ice pack' and 'after soaking jasmine in water, making a dough with flour, and then attaching it on the affected area', which have the rationales, Additionally, although the frequencies are low, 'drinking brewed Achyranthis Radix' and 'applying brewed leaves and stalks of Sambuci Cortex' have the rationales. 4. The folk remedies for food poisoning in frequency order are 'drinking black beans and licorice brewed together' and 'eating mung beans', which have the scientific grounds. 5. The folk remedies for bloody discharge in frequency order are 'drinking brewed lotus root' and 'eating boiled chicken stuffed with root of bell-flower'. However, 'drinking brewed Thujae orientalis Folium' has the rationales. 6. The folk remedy for snake bite wounds that has the scientific grounds is 'sucking blood by a person without hurt in the mouth'. However, quite a lot of people apply alum or soy paste, which has no rationales. 7. The folk remedies for the bee sting in frequency order are 'after removing the sting, applying soy paste or sauce' and 'applying saliva'. No rationales for 'applying saliva' have been found. 8. The folk remedy for the dog bite wound that has the rationales is 'applying juice of leaves or stalks of Xanthii Fructus'. However, 85% of surveyed people use remedies that have no scientific grounds, such as 'applying burnt dog hair mixed with (sesame) oil' and 'applying soy paste or sauce'. Various materials are used in folk remedies for first aid treatment as shown above. Some of the folk remedies have the rationales since their medicinal actions have been found. However, the medicinal actions of the majority have not been found, but only known that they are effective, Especially for the materials except botanical drugs, they are used without knowing the effects since their components and pharmacognosies have not been described in any literature. The results of this research may be used for materials to educate the surveyed people or to consult them. Accordingly, the folk remedies that have the rationales are required to continue to study to find out the effects.

  • PDF

Enzymatic characterization and Expression of 1-aminocycloprophane-1-carboxlyate deaminase from the rhizobacterium Pseudomonas flourescens

  • Lee, Gun-Woong;Ju, Jae-Eun;Kim, Hae-Min;Lee, Si-Nae;Chae, Jong-Chan;Lee, Yong-Hoon;Oh, Byung-Taek;Soh, Byoung-Yul
    • 한국자원식물학회:학술대회논문집
    • /
    • 한국자원식물학회 2010년도 정기총회 및 춘계학술발표회
    • /
    • pp.17-17
    • /
    • 2010
  • Ethylene, known as a stress hormone regulate wide developmental processes including germination, root hair initiation, root and shoot primordial formation and elongation, leaf and flower senescence and abscission, fruit ripening. The acceleration of ethylene biosynthesis in plant associated with environmental and biological stresses. 1-Aminocycloprophane-1-carboxlyate deaminase(ACCD) is an enzyme that cleaves ACC into and ammonia, a precursor of the plant hormone ethylene. Plant growth-promoting rhizobacteria (PGPR) having ACCD can decrease endogenous ACC level of tissue, resulting in reduced production of ethylene in plants. ACC deaminse was a key enzyme for protect stressed plants from injurious effects of ethylene. ACCD gene was encoded from Pseudomonas flourescens, PGPR and was cloned in Escherichia coli. We expressed the recombinant ACCD(rACCD) containing 357 amino acids with molecular weight 39 kDa that revealed by SDS-PAGE and western blot. The rACCD was purified by Ni-NTA purification system. The active form of rACCD having enzyme activity converted ACC to a-ketobutyrate. The optimal pH for ACC deaminase activity was pH 8.5, but no activity below pH 7.0 and a less severe tapering activity at base condition resulting in loss of activity at over pH 11. The optimal temperature of the enzyme was $30^{\circ}$ and a slightly less severe tapering activity at 15 - 30$^{\circ}$, but no activity over $35^{\circ}$. P. flourescens ACC deaminase has a highly conserved residue that plays in allowing substrate accessibility to the active sites. The enzymatic properties of this rACCD will provide an important reference for analysis of newly isolated ACCD and identification of newly isolated PGPR containing ACCD.

  • PDF

바이오 안테나인 일차 섬모 조절을 통한 피부 미백 기술 (Primary Cilia, A Novel Bio-target to Regulate Skin Pigmentation)

  • 최현정;박녹현;김지현;조동형;이태룡;김형준
    • 대한화장품학회지
    • /
    • 제44권1호
    • /
    • pp.73-79
    • /
    • 2018
  • 일차 섬모(primary cilia)는 세포에서 안테나처럼 돌출되어 나온 기관인데, 외부 자극에 반응할 수 있는 각종 수용체와 채널, 신호 전달 인자들을 가지고 있다. 피부는 자외선, 온도, 습도, 중력, 장력 등 외부 환경에 반응하여 멜라닌이나 콜라겐을 만들고 피부 장벽을 형성한다. 피부에서는 일차 섬모가 없으면 헤어의 생성이나 각질의 분화가 억제된다는 보고가 있다. 또한 피부 색소 생성과 관련하여서는 일차 섬모가 sonic hedgehog-smoothened-GLI2 신호 전달에 의해 활성화되면 멜라닌 생성이 억제된다는 것이 알려져 있다. 피부가 자외선을 받으면 멜라닌 생성 호르몬의 양이 증가하고 멜라닌 생성 호르몬은 멜라닌 생성 세포 내 cAMP의 양을 증가시켜 멜라닌 생성 효소의 발현을 높인다. 이에 멜라닌 생성 호르몬과 세포 내 cAMP의 양을 증가시키는 물질을 처리하여 멜라닌 생성을 높였을 때 일차 섬모의 변화를 확인한 결과 일차 섬모가 감소하는 것을 확인하였다. 또한 기존 미백 원료인 유용성 감초 추출물(an ethanol extract of Glycyrrhiza glabra (EGG) root)과 Melasolv (3,4,5-trimethoxy cinnamate thymol ester (TCTE))가 일차 섬모의 발현을 증가시키고 멜라닌 생성 효소인 tyrosinase의 발현을 억제함을 확인할 수 있었다. 따라서 일차 섬모를 조절할 수 있다면 피부 색소 침착을 효과적으로 조절할 수 있을 것이다.

노지재배(露地栽培)에 적응(適應)한 아열대산(亞熱帶産) 뽕나무의 특성(特性)과 양잠(養蠶)에서의 응용(應用) (Characteristic and Application Under the Sericulture of Subtropical Zones Mulberry Adapted Itself to the Field Cultivation)

  • 석영식;박상조;안신헌;한상미;여주홍;한명세
    • 한국잠사곤충학회지
    • /
    • 제47권2호
    • /
    • pp.68-77
    • /
    • 2005
  • 아열대산 MK-T2의 생태적 특성조사, 발근 특성 그리고 오디의 형태와 이화학적 특성, 사료가치 검정 평가, MK-T2로 사육한 5령3일차 누에의 아미노산 분석과 누에 에탄올 추출액의 약리효과에 대한 연구를 하여 다음과 같은 결과를 얻어 잎과 오디 등 다용도 $\ulcorner$청강상(淸江桑)$\lrcorner$ 자체개발 품종육성의 기본자료로 활용하였다. 1. 아열대산 MK-T2의 생태적 특성을 조사한 결과 발아 개엽기는 개량뽕과 비교하여 $9{\sim}10$일 빠르며 새순의 발육 또한 67.2 cm로 3 cm 정도 길었으며, 새순의 뽕잎수도 18.6 개로 2개가 많았다. 2. 엽의 형태는 엽장이 엽폭보다 약간 발달한 1.10 비율을 나타내었으며 엽두께, 엽면적은 각각 $228.2{\mu}m,\;225.6cm^2$로서 개량뽕보다 약간 얇거나 작은편이었다. 3. MK-T2는 화주부분이 0.7mm로 짧게 존재하며 주두내면에 드물게 미모(微毛)가 분포하여 장화계구(長花桂區) 계두유모류(桂頭有毛類)에 속한다고 판단이 된다. 4. 고손장비율은 5.7%로서 개량뽕의 12.9%와 비교하여 상당히 우수하지만 무농약재배의 조건에서 충해의 경우 주당 피해율이 88.6%로서 개량뽕의 47.5%의 거의 2배정도 약함을 보여주었다. 5 .무처리 신소삽목시 발근율이 가지의 굵기와 무관하게 100% 발근하여 온대지역의 개량뽕이 15mm 이상에서 10% 발근한 사실과 비교하여 매우 우수한 발근력을 보여주었으며 발근 형태적 특성은 토양과 물 모두 45%비율로 가지의 중부와 하부에서 발근하는 특성을 보여주어 하부에서 발근하는 온대지역의 뽕나무와는 많은 차이를 나타내었다. 6. MK-T2의 오디는 길이가 24.6 mm, 수분율 78.8%, 당도가 19.21 Brix%로 오디용으로 개발된 품보 20, 검설뽕과 비슷한 성적을 나타내었으나 특이하게 pH 4.7로 단맛과 신맛을 함께 지니고 있었다. 7. NK-T2의 사료가치 검정평가 결과 개량뽕과 비교하여 유충기간과 화용비율, 견충비율은 거의 비슷하였으나, 단견중, 견층중. 2만두 수견량은 약간 떨어지는 결과를 보여 엽질이 비교적 우량하다고 평가되었다. 8. MK-T2로 사육한 5령3일차 누에의 아미노산을 분석한 결과 개량뽕을 급이한 대조구 간에는 서로 거의 유사한 아미노산 조성을 보여주었으나 MK-T2를 급이한 시험구의 경우 대조구와 비교하여 Leu에서 차이를 보여주었으며 Ile는 대조구에서는 검출되지 않았으나 MK-T2 시험구에서는 검출되었다. 9. MK-T2로 사육한 5령3일차 누에 에탄올 추출물의 약리효과 검정결과 누에 에탄을 추출물을 투여한 쥐에서 적출한 신장조직에 대한 HE 염색 및 조직면역화학염색 모두에서 조직학적 병징이 나타나지 않았고 $TGF-{\beta}1$ 단백 발현이 거의 확인되지 않는 수준으로 낮아졌다.