• Title/Summary/Keyword: He

Search Result 13,294, Processing Time 0.037 seconds

A Spectral Comparison Study of PDT Drugs - ALA and ALA-Hexyl ester

  • Yao, Chen-Ji;Peng Qian;JodI H-J
    • Journal of Photoscience
    • /
    • v.9 no.2
    • /
    • pp.521-523
    • /
    • 2002
  • 5-aminolevulinic acid (ALA) has been used to stimulate endogenous protoporphyrin IX (PpIX) in tumor and then initiate PDT. Recently, ALA-Hexyl ester (He-ALA) was found much effective than ALA on producing PpIX in cancer cells. To clarify the transportation mechanism of ALA and He-ALA, the detection of them is the important step. ALA and its derivatives all don't emit fluorescence, so the Raman spectroscopy was used here for the direct detection of ALA and He-ALA. The results showed that ALA and He-ALA have the common strong Raman peaks at 2930, 2950 CM$\^$-1/, due to the CH$_2$ vibration. The peak 3050 CM$\^$-1/ appeared in ALA spectrum can be attributed to OH vibration, while the peaks of 2860, 2900 CM$\^$-1/ in He-ALA spectrum were assigned as the modes of CH$_3$. This Raman spectral characteristic is consistence with the structure difference of He-ALA and ALA. Thus, Raman spectroscopy provides a new way to detect and distinguish ALA and He-ALA, and could be explored further in biology system.

  • PDF

Anti-Obesity Effect of Herbal Mixture Powder and Water Extracts in Mice Fed a High Fat Diet (나복자, 의이인, 백복령, 다엽, 차전자피로 구성된 혼합분말제(HP)와 진피, 산사, 옥미수, 양총피로 구성된 혼합열수추출물(HE)이 고지방식이로 유도된 비만마우스에 미치는 항비만 효과)

  • Youn, Jedong;Choi, Yunhee
    • Journal of Society of Preventive Korean Medicine
    • /
    • v.19 no.1
    • /
    • pp.131-144
    • /
    • 2015
  • Objective : This study was conducted to investigate anti-obesity effects of mixed-Powder(Raphani Semen, Coicis Semen, Poria, Plantaginis Testa & Theae folium)(HP) & mixed water extract(Citri Pericarpium, Crataegi Fructus, Maydis Stigma, Allium Skin) (HE) in mice fed a high-fat diet. Method : 50 Female ICR mice were divided into six groups; Normal group (Ve), high-fat diet group (Po), Po+HP(0.6g/kg) group(HP), Po+HE(1g/kg) group(HE), Po+(HP+HE) group(HPE), Po+(HP+HE)*2 group(DHPE). For 8 weeks, these groups were fed their respective diets. Body weight, liver weight and weights of adipose tissues, GOT/GPT index changes & Blood Glucose index changes were measured respectively. Lipid profiles in serum were analyzed by kit of blood. Results : Groups HP, HE, HPE, DHPE had significantly reduced body weight, liver weight, adipose tissue weights and GOT/GPT index, blood glucose index compared to the Po group. Also, serum triglyceride and total cholesterol, low density lipoprotein, were significantly reduced when compared to the Po group. Group G1 had significantly increased high density lipoprotein levels. Conclusion : Mixed powder (HP) & mixed water extract (HE) show anti-obesity effects in mice fed a high-fat diet.

Criticism of the 『History of Korean Medicine』 written by Kim Doo Jong (김두종(金斗鍾)의 상세의학사(上世醫學史) 비판(批判))

  • Park, Seong Kue;Kim, Nam Il
    • The Journal of Korean Medical History
    • /
    • v.20 no.1
    • /
    • pp.68-82
    • /
    • 2007
  • Kim, Doo-jong wrote "History of Korean Medicine", which was based on the historical view of Japanese Imperialism, insisting that Korea had stagnated and should be stimulated by others because it had no ability to improve by itself. To meet his opinion, he distorted and fabricated Korean Medical History to justify his past and work as Lee, Byung-Do did on Korean History. This paper intended to reveal his distortion and fabrication on the ancient Korean Medical History. Firstly, he insisted that Korean medicine had stagnated till other neighbor medicine, that is, Chinese medicine, Indian medicine, Japanese medicine and European medicine stimulated its progress. Secondly, he insisted that the Korea peninsula has been the Korean territory all through its history, which was originally forged by the Japanese Imperialists. He adopted this theory to justify his past and work. Thirdly, he insisted that Korea was effected by the European medicine a long time ago. Even though the European medicine was not skillful at that time compared with Korean medicine, he adopted this theory to justify his past and work. Lastly, he had a wrong recognition on culture and religion, which he just used to justify his past and work. Profound study and research are required to eliminate his distortion and write the history of Korean medicine correctly.

  • PDF

Needs Assessment of the Purposes of Korean Secondary School Home Economics Education (중.고등학교 가정과 교육목표에 대한 필요평가)

  • Chae, Jung-Hyun
    • Korean Journal of Human Ecology
    • /
    • v.5 no.1
    • /
    • pp.89-98
    • /
    • 1996
  • The objectives of this study were (1) to determine the rank of purposes of Korean secondary school home economics education related to three systems of action: technical, communicative, and emancipatory action by home economics(HE) teachers and HE teacher educators, (2) to compare differences between HE teachers and HE teacher educators concerning the degree of importance and achievement of the purposes of current Korean secondary school HE education. Respondents in this study were 225 HE teachers and 35 HE teacher educators. The survey method was used in this descriptive study. To determine the rank, Borich's needs assessment model was used. The data were analyzed by using t-test to compare the differences between the two groups. To promote a good life and the full development of human beings, to develop creative and critical thinking, to make morally defensible judgments, and to develop self-esteem were needed purposes for Korean secondary school HE education. Overall, the most high ranked purpose needs for both groups related to emancipatory action. The two groups were significantly different on the degree of the importance of evaluating family and social conditions, acquiring the skills needed as a wage earner and a homemaker, developing creative and critical thinking, and demonstrating proficiency of homemaking work. The teachers and teacher educator groups were significantly different on the degree of the achievement of making morally defensible judgments, understanding Korean traditional culture, and taking care of each other.

  • PDF

Comparisons of High School Students' Perspective on Home Economics (가정교과목에 대한 고등학생들의 의견연구 - 재학 중인 학교별 차이비교 -)

  • Kim, In-Sook;Lim, Jin-Hee;Han, Mee-Sun;Choi, Jong-Myoung
    • Korean Journal of Human Ecology
    • /
    • v.5 no.1
    • /
    • pp.99-111
    • /
    • 1996
  • The purpose of this study is to find some directions to enhance high school students' recognitions for the necessity of Home Economics(HE) education. 309 respondents were sampled from boys', girls' and co-ed high schools in Chongju. The questionnaire consisted of some items about the respondents' interest, necessity, and the required level for HE. The results are as follows : 1) Students from girls' high school and co-ed high school showed more interest in HE than did the students from boys' high school. 2) The recognition of the necessity for learning HE in high school was significantly differed according to the school systems. 3) The demand level on HE was 52.8 out of 100 point, which is fairly low. Girls from co-ed high school showed higher demand on HE than did the girls' high school. 4) The highest demand level of students in the detailed domains of HE was on consumption. And the students showed a comparatively high demand on health, job, and consumption, while showing low demand on clothing. 5) Students from boys' high school and co-ed high school favored practice-oriented HE education.

  • PDF

Helper-Independent Live Recombinant Adenovirus Vector Expressing the Hemagglutinin-Esterase Membrane Glycoprotein

  • YOO, DONGWAN;ICK-DONG YOO;YOUNG-HO YOON;FRANK L GRAHAM;LORNE A. BABIUK
    • Journal of Microbiology and Biotechnology
    • /
    • v.2 no.3
    • /
    • pp.174-182
    • /
    • 1992
  • The hemagglutinin-esterase glycoprotein (HE) gene of bovine coronavirus, coupled with a simian virus 40 early promoter and polyadenylation signal, was inserted into a human adenovirus transfer vector. The transfer vector was used to co-transfect 293 cells along with adenovirus genomic DNA. The hemagglutinin-esterase transcription unit was rescued into the adenovirus genome by homologous in vivo DNA recombination between the vector plasmid DNA and the adenovirus genomic DNA, and a recombinant adenovirus was isolated by several rounds of plaque assays. Thus the recombinant adenovirus carries the hemagglutinin-esterase gene in the early transcription region 3 (E3) of the adenovirus genome in the parallel orientation to the E3 transcription. The recombinant adenovirus synthesized the HE polypeptide in HeLa cells as demonstrated by immunoprecipitation with anti-coronavirus rabbit antisera. The recombinant HE polypeptide could be labelled by $[^3H]$glucosamine, demonstrating that the recombinant HE was glycosylated. Cells expressing the HE polypeptide exhibited hemadsorption activity when incubated with mouse erythrocytes. The HE was transported to the plasma membrane as shown by the cell surface immunofluorescence, indicating that the recombinant HE polypeptide retained its biological activities. Potential for the use of infectious recombinant adenovirus as a live virus-vectored vaccine candidate for bovine coronavirus disease is discussed.

  • PDF

Cytotoxicity Against Human Cancer Cell Lines by Paecilomyces tenuipes DUGM 32001 (눈꽃동충하초(Paecilomyces tenuipes)의 인간 암세포주에 대한 세포독성)

  • 심중섭;민응기;장해룡;이창윤;김삼수;한영환
    • Korean Journal of Microbiology
    • /
    • v.36 no.4
    • /
    • pp.312-315
    • /
    • 2000
  • Paecilomyces tenuipes DGUM 32001, an entomopathogenic fungus, was examined to evaluate in vitro cytotoxicity against several human cancer cells. The fruiting bodies of P. tenuipes were extracted with methanol and fractioned with some organic solvents i.e. chloroform, ethyl acetate, and butanol. The methanol extracts of P. tenuipes showed significant cytotoxicity against human cancer cell lines; HeLa, HeLa S3, and A-431. Among the fractions tested, the ethyl acetate fraction had the highest cytotoxicity against three cancer cell lines. The $IC_{50}$ values of ethyl acetate fraction against HeLa, HeLa S3, and A-431 were 13, 35, and 30 $\mu$g/ml, respectively. However, cytotoxicity might not be due to apoptosis. The methanol extract of cultured mycelia showed high cytotoxicity against HeLa cell lines.

  • PDF

Unknown Power, Impotentiality in Herman Melville's Pierre, or the Ambiguities

  • Chang, Jungyoon
    • Journal of English Language & Literature
    • /
    • v.56 no.3
    • /
    • pp.557-575
    • /
    • 2010
  • Pierre breaks the rules of convention and acquires the 'potential not to do.' To transform the traditional hero into the new potential subject, Pierre moves from his hometown, Saddle Meadows, New York City to the dungeon of the city prison and creates three different relationships that symbolize what ideology and principles repress his mind and behavior and how he handles them. Firstly, in Saddle Meadows, Pierre has a narcissistic relationship with his mother, Mary, who teaches him the principles of American manhood and forces him to be docile: he has to obey Mary's order that a man should be a gentleman. Therefore, since he does not know his potential, he does not create his own work and is involved in plagiarism. Secondly, in New York City, Pierre creates an associated relationship with Isabel, his half-sister, who represents an ambiguous and mysterious character and has the 'potential not to do' that leads Pierre to destroys the beliefs of American manhood and performs the potential to do. Consequently, Pierre puts himself in an extreme situation and is absolutely liberated from the influence of his dead father, who unconsciously controls Pierre's behavior and thoughts. Thus, he makes a dissociated relationship with his father. In the dungeon, he physically dies, but symbolically metamorphoses into Isabel, so that he blurs the differences between Isabel and himself. Furthermore, he never stays in his own way: in this on-going process, Pierre cannot determine which is good or bad, legitimate or illegitimate and life or death.

Building More Secure Femtocell with Improved Proxy Signature (개선된 위임 서명 방식을 이용해서 더 안전한 펨토셀 환경 구축)

  • Choi, Hyoung-Kee;Han, Chan-Kyu;Kim, Seung-Ryong
    • Journal of the Korea Institute of Information Security & Cryptology
    • /
    • v.24 no.1
    • /
    • pp.75-86
    • /
    • 2014
  • Demand for the femtocell is largely credited to the surge in a more always best connected communication conscious public. 3GPP defines new architecture and security requirement for Release 9 to deal with femtocell, Home eNode B referred as HeNB. In this paper, we analyze the HeNB security with respect to mutual authentication, access control, and secure key agreement. Our analysis pointed out that a number of security vulnerabilities have still not been addressed and solved by 3GPP technical specification. These include eavesdropping, man-in-the-middle attack, compromising subscriber access list, and masquerading as valid HeNB. To the best of our knowledge, any related research studying HeNB security was not published before. Towards this end, this paper proposes an improved authentication and key agreement mechanism for HeNB which adopts proxy-signature and proxy-signed proxy-signature. Through our elaborate analysis, we conclude that the proposed not only prevents the various security threats but also accomplishes minimum distance from use-tolerable authentication delay.

The Study of the Literature on the Book of Neijingshiyifanglun with additions and emendations ("증보내경습유방론(增補內經拾遺方論)"에 대한 문헌(文獻) 연구(硏究))

  • Ahn, Jae-Young;Jo, Hak-Jun
    • Journal of Korean Medical classics
    • /
    • v.25 no.2
    • /
    • pp.25-41
    • /
    • 2012
  • Objective : Neijingshiyifanglun with additions and emendations was written by Liu Yude, a doctor who lived during Ming period. I researched the origin of the book, and analyzed the features of it as well. I also approximated his birth date and death date. In doing this, I gained a better understanding the practice of medicine in ancient China. Method : I researched the book by comparing its contents, including the causes of diseases, the descriptions of symptoms, the transmissions of diseases, and treatments, with other sources that he had referenced. Result : In understanding Hwangdineijing, Liu Yude was influenced by many medical scholars such as, Wang Bing, Ma Shi, and Wu Kun, but his opinion is most similar to that of Zhang Jiebin. In the field of the Chinese Medical Theory, he was deeply influenced by 'JinYuan-Sidaijia's theories, particularly Li Gao and Zhu Zhenheng. In fanglun, he was greatly influenced by Yifangkao. He concluded that 'aggregationaccumulation' was a disease of stuffiness, and suggested its cure in through 'yangjingzezichu' and 'treatment of blood aspect'. He recognized the disease of 'reversal of qi' as the disease of 'jiaoqi'. He also indicated that the word of 'qi' is not 'rough' but 'tears' or 'yingfengliulei'. Conclusion : 1. He was an excellent medical practitioner and scholar in the history of oriental medicine. 2. He found and corrected errors in the opinions of Wang Bing, Ma Shi, and Wu Kun. 3. He frequently practiced Taipinghuiminhejijufang, and considered Spleen-Stomach, yin-blood, and fire-heat important. 4. He captured the spirit of Huangdisuwenxuanminglunfang, Neijingshiyifanglun, Yifangkao in views of remedy and theory. 5. Neijingshiyifanglun with additions and emendations is the most comprehensive book about fanglun because of its thorough analysis of the Hwangdineijing and its connection to the treatment of ancient diseases in Oriental Medical History.