• 제목/요약/키워드: Role frame

검색결과 483건 처리시간 0.026초

초등학교 수학 교과서에서 통계 그래프의 틀에 대한 교육적 고찰 (A Study on the Frames of Statistical Graphs in the Elementary School Mathematics Textbooks)

  • 탁병주
    • 한국수학교육학회지시리즈C:초등수학교육
    • /
    • 제23권4호
    • /
    • pp.157-173
    • /
    • 2020
  • 일상에서는 통계 그래프의 형태가 매우 다양하지만, 초등학교 수학 교과서에 제시되는 통계 그래프는 교수학적 맥락에 의해 그 틀이 매우 정형화되어 있다. 본 연구에서는 초등학교 수학 교과서에 제시되는 통계 그래프 틀의 교육적인 의의를 고찰하고, 우리나라, 호주, 그리고 MiC 수학 교과서에 제시된 그래프 틀을 분석하였다. 연구 결과, 초등학교 수학 교과서에서 통계 그래프의 틀은 (1) 그래프의 구성 요소에 주목하게 하고, (2) 그래프를 그릴 때 보조적인 역할을 하며, (3) 학습 내용을 통계적 문제해결에 적용하도록 돕는 역할을 한다. 우리나라의 초등학교 수학 교과서는 (1)과 (2)에 주목한 표 형태의 그래프 틀을, MiC 교과서는 (3)에 주목한 다양한 형태의 그래프 틀을 제시하고 있었다. 따라서 저학년 수준에서는 표 형태의 그래프 틀을 이용하였으나, 학년이 올라갈수록 축 형태의 그래프 틀로 점진적인 변화를 추구했던 호주의 초등학교 수학 교과서 사례를 참고할 필요가 있다.

디지털 변화에 따른 뷰티제품의 휴대기능성 연구 (A study in Mobile Functionality of beauty products according to the Digital changes)

  • 방기정
    • 패션비즈니스
    • /
    • 제16권1호
    • /
    • pp.83-102
    • /
    • 2012
  • The instant trend of mobile functionality in the digital age is performing a mediating role of promoting the hybrid tendency in fashion and cosmetics industry. Consumers' needs, which are getting complex and diversified along with development in scientific technology, are requiring product of technology equipped with multi-tasking function in the whole industry. The social and cultural factors, which are shown in cosmetics due to the instant trend of mobile functionality, came to be known on the basis of a ground for classification caused by a change in nomadic lifestyle and by the advance in scientific technology. The irst, The mobile functionality, which is being developed in fashion in the digital age, was indicated to be types such as mobility, one-off, and unity. Second, Even the types of mobile functionality, which are also being developed in make-up and cosmetics in digital age, were indicated to be mobility, one-off, and unity. Third, The trend caused by mobile functionality in fashion was consistent with a type in mobile functionality, which is being developed in cosmetics, thereby having been indicated to be the same type. This implies that there is the same type through independent trend in each sphere even while fashion and cosmetics organically function in the middle of the whole frame, which expresses a human being's external beauty, and implies that even the cosmetics are influenced by fashion. Swift-type beauty product, which is thrown away within one week lengthily and after being used once, are being launched diversely. This quick product can be said to be product that best reflected the characteristic of digital age. However, at this point of time that fast fashion and instant cosmetics, which are thrown away in the wake of being worn easily, are overflowing, the clothing and product with perfection, which has philosophy and thinking of being put more devotion, exert more value and are felt to be necessary.

Isolation and Characterization of a Doritaenopsis Hybrid GIGANTEA Gene, Which Possibly Involved in Inflorescence Initiation at Low Temperatures

  • Luo, Xiaoyan;Zhang, Chi;Sun, Xiaoming;Qin, Qiaoping;Zhou, Mingbin;Paek, Kee-Yoeup;Cui, Yongyi
    • 원예과학기술지
    • /
    • 제29권2호
    • /
    • pp.135-143
    • /
    • 2011
  • In the Doritaenopsis hybrid, like most of the orchid species and hybrids, temperature is crucial for the vegetative-to-reproductive transition, and low temperature is required for bud differentiation. To understand the molecular mechanism of this process, an orchid GIGANTEA (GI) gene, DhGI1, was isolated and characterized by using the rapid amplification of cDNA ends (RACE) PCR technique. Sequence analysis showed that the full-length cDNA is 4,022 bp with a major open reading frame of 3,483 bp, and the amino acid sequence showed high similarity to GI proteins in Zea mays, Oryza sativa, Arabidopsis thaliana and other plants. Semi-quantitative RT-PCR revealed that DhGI1 was expressed throughout development and could be detected in roots, stems, leaves, peduncles and flower buds. The expression level of DhGI1 was higher when the plants were flowering at low temperature (22/$18^{\circ}C$ day/night) than the other growth stages. Further analysis indicated that the accumulation of DhGI1 transcripts was significantly increased at low temperature, and concomitantly, initiation of the peduncle was observed. However, DhGI1 levels were low under high temperature (30/$25^{\circ}C$) conditions, and flower initiation was inhibited. These results indicate that the expression of DhGI1 is regulated by low temperature and that DhGI1 may play an important role in inflorescence initiation in this Doritaenopsis hybrid at low temperatures.

빅벨리해마(Hippocampus abdominalis)에서의 Mitochondrial Heat Shock Protein 75 유전자의 특징과 발현 분석 (Characterization of Mitochondrial Heat Shock Protein 75 (mtHSP75) of the Big-belly Seahorse Hippocampus abdominalis)

  • 고지연;;이숙경;;오민영;이제희
    • 한국수산과학회지
    • /
    • 제48권3호
    • /
    • pp.354-361
    • /
    • 2015
  • Mitochondrial heat shock protein 75 (mtHSP75) is a member of the HSP90 family and plays essential roles in refolding proteins of the mitochondrial matrix. Mitochondria provide energy in the form of ATP and generate reactive oxygen species (ROS). Heat shock proteins (HSPs) are activated in response to stress, and protect cells. In this study, we characterized the mtHSP75 of the big-belly seahorse Hippocampus abdominalis. The protein (BsmtHSP75) is encoded by an open reading frame (ORF) of 2,157 nucleotides, has 719 amino acids (aa), and is of molecular mass 82 kDa. BsmtHSP75 has two functional domains, a histidine kinase-like ATPase (HATPase_c) domain (123-276 aa) and an HSP90 family domain (302-718 aa). BsmtHSP75 was expressed in all tested tissues of healthy seahorses. The ovary contained the highest transcription level, followed (in order) by the blood, brain, and muscle. Pouch tissue showed the lowest expression level. The expression of BsmtHSP75 was significantly (P<0.05) up-regulated on viral or bacterial challenge, suggesting that BsmtHSP75 plays a role in the immune defense against bacterial and viral pathogens.

인천경제자유구역 개발에 관한 중앙지와 지역일간지의 보도방식과 뉴스 프레임 연구 (Content-analyzing News Frame on the Incheon Free Economic Zone between the Metropolitan Newspaper and the Local Daily Newspaper)

  • 강승훈
    • 한국언론정보학보
    • /
    • 제57권
    • /
    • pp.160-180
    • /
    • 2012
  • 이 연구에서는 중앙지와 지역일간지가 인천경제자유구역 개발 뉴스를 어떻게 보도했으며, 이 과정에서 언론이 어떤 방식으로 역할을 했는지를 살펴보았다. 중앙지와 지역일간지 간에 현실 재구성, 뉴스보도 가치 등의 차이점을 발견하는데 주력했다. 보도방식은 고전적인 형식에 최근 경향을 적절히 반영하고 있음이 확인됐다. 지역 현안을 바라보는 조선일보의 시각은 찬 반의 명확한 태도에서 벗어난 중간자적 입장을 취했으며 반면 경인일보는 감시자의 입장에 서 있었다. 즉 전국을 취재 권역으로 한 중앙지는 지역 이슈에 대해 관망적인 자세를 보였고, 해당 지역을 중심으로 기사를 작성하는 지역일간지는 적극적인 보도 태도를 취했다. 이런 뉴스구성 태도는 실제 지면으로 이어지는 기준인 뉴스가치에도 그대로 반영됐다. 조선일보는 정치적 영향성에, 경인일보는 문화적 유사성에 집중하고 있었으며, 인천경제자유구역 개발 뉴스는 매체 간 구분 없이 대체적으로 경제적 중요성과 인간적 흥미성은 높았고 선정성 및 규범적 일탈성은 낮았다.

  • PDF

Molecular Cloning and mRNA Expression of Cytochrome P450 (CYP450)-related Protein in the Pacific Oyster, Crassostrea gigas: A Water Temperature and Time Study

  • Jo, Pil-Gue;Min, Tae-Sun;An, Kwang-Wook;Choi, Cheol-Young
    • Animal cells and systems
    • /
    • 제13권4호
    • /
    • pp.447-452
    • /
    • 2009
  • We cloned the complete complementary DNA (cDNA) of a Pacific oyster (Crassostrea gigas) cytochrome P450 (CYP450)-related protein using rapid amplification of cDNA ends (RACE). The cDNA included a 1470 bp open reading frame that began with the first ATG codon at position 103 bp and ended with a TAG stop codon at position 1573 bp (GenBank accession EF451959). The sequence had all major functional domains and characteristics of previously characterized CYP450 molecules, including the heme-binding region (FGVGRRRCVG) and putative arginine codon (R) integral to enzymatic function. An NCBI/GenBank database comparison to other CYP450 genes revealed that the deduced C. gigas CYP450 amino acid sequence is similar to that of mouse (Mus musculus) CYP450 2D/II (28%, accession AK078880), rabbit (Oryctolagus cuniculus) CYP450 2D/II (28%, AB008785), and white-tufted-ear marmoset (Callithrix jacchus) CYP450 2D (28%, AY082602). Thus, although the C. gigas CYP450 we cloned appears to belong to the 2D type of the CYP450 group, it has low similarity to this type. CYP450 mRNA expression increased over 6 h in C. gigas gills at $30^{\circ}C$ and $10^{\circ}C$, and then decreased, indicating that CYP450 plays an important role in C. gigas exposed to water temperature changes. This finding can be used as a physiological index for Pacific oysters exposed to changing water temperatures.

Isolation and Characterization of Glycolate Oxidase Gene from Panax ginseng C. A. Meyer

  • Parvin, Shohana;Pulla, Rama Krishna;Kim, Yu-Jin;Sathiyaraj, Gayathri;Jung, Seok-Kyu;Khorolragchaa, Altanzul;In, Jun-Gyo;Yang, Deok-Chun
    • Journal of Ginseng Research
    • /
    • 제33권4호
    • /
    • pp.249-255
    • /
    • 2009
  • The oxidation of glycolate to glyoxylate, a key step in plant photorespiration, is carried out by the peroxisomal flavoprotein glycolate oxidase (EC 1.1.3.15). To investigate the altered gene expression and the role of GOX in ginseng plant defense system, a cDNA clone containing a GOX gene designated as PgGOX was isolated and sequenced from Panax ginseng. The cDNA was 692 nucleotides long and have an open reading frame of 552 bp with a deduced amino acid sequence of 183 residues. A GenBank BlastX search revealed that the deduced amino acid of PgGOX shares a high degree homology with the Glycine max (95% identity). In the present study we analyzed the expression of PgGOX under various environmental stresses at different times using real time-PCR. The results showed that the expressions of PgGOX increased after various treatments involving salt, light, cold, ABA, SA, and copper treatment.

Isolation and Characterization of Cinnamoyl-CoA Reductase Gene from Panax ginseng C. A. Meyer

  • Parvin, Shohana;Pulla, Rama Krishna;Shim, Ju-Sun;Kim, Yu-Jin;Jung, Dea-Yeoung;Kim, Se-Hwa;Yang, Deok-Chun
    • Journal of Ginseng Research
    • /
    • 제32권3호
    • /
    • pp.232-237
    • /
    • 2008
  • Cinnamoyl-CoA reductase (CCR, EC 1.2.1.44) catalyses the reduction of cinnamic acid CoA esters into their corresponding aldehydes, the first step of the phenylpropanoid pathway specially dedicated to monolignol biosynthesis. A cDNA clones encoding CCR have been isolated from Panax ginseng C.A. Meyer and its expression was investigated in response to abiotic stresses. The cDNA, designated PgCCR which is 865 nucleotides long and has an open reading frame of 590 bp with a deduced amino acid sequence of 176 residues. The PgCCR encoded protein possesses substantial homology with CCRs isolated and cloned from other sources; the highest identity (51.8%) was observed with CCR from Tomato (Lycopersicon esculentum). Under various stress conditions, expression patterns of the PgCCR were highly induced in adventitious and hairy roots by several abiotic stresses. These results indicated that PgCCR plays protective role against diverse environmental stresses.

디지털 미디어 시대의 패션과 메이크업에 나타난 하이브리드 경향 연구 (A Study of the Hybrid on the Fashion and Makeup Trends on the Digital Media Age)

  • 방기정;김경희
    • 복식문화연구
    • /
    • 제18권1호
    • /
    • pp.64-79
    • /
    • 2010
  • The digital era in the 21st century is globalized and is collapsed boundary among countries, thereby being able to be said to be characterized most largely by proceeding with being a form like a federation and EU. A change into digital era brought about a change in all the aspects of human behavior and culture, not a change simply in temporal significance and technological significance. In recent days, all the services came to be possibly used the integrated device with the same network owing to innovation of communication technology, which is represented by digital, network, and internet. Now, the broadcasting industry, computer industry, and communication industry are exceeding the peculiar sphere by being mutually merged. Each of industrial sector centering on internet is showing the phenomenon of being united. The hybrid trend, which was formed by phenomenon in the complex digital media society, tended to be indicated in fashion and makeup design. As the digital media era was generated, the hybrid trend induced a change into society in open and horizontal idea. It came to be known that there is independent trend in each field even while organically working in the middle of the whole frame that fashion and makeup express a human being's external beauty. This implies that makeup is not what is always influenced by fashion as an accessory in fashion and a supplementary role, but what can show its contrary phenomenon. This study examined characteristics, which are shown in fashion and makeup due to hybrid influence with greeting the digital media era. This study was carried out in order to be conducive to objective data available for giving help to the future direction and marketing data in product of the relevant businesses, through the results of this study.

Molecular Cloning of a Gene Encoding $\alpha$-L-Arabinofuranosidase from Hyperthermophile Thermotoga maritima and Characterization of Its Biochemical Properties

  • Keum, In-Kyung;Lee, Eun-Joo;Kim, Tae-Jip;Kim, Chung-Ho;Han, Nam-Soo
    • 한국미생물생명공학회:학술대회논문집
    • /
    • 한국미생물생명공학회 2004년도 Annual Meeting BioExibition International Symposium
    • /
    • pp.273-277
    • /
    • 2004
  • $\alpha$-L-Arabinofuranosidase ($\alpha$-L-AFase, EC 3.2.1.55) was isolated from hyperthermophilic microorganism, Thermotoga maritima. The open reading frame (ORF) of $\alpha$-L-AFase gene is 1,455 bp long and encodes 484 amino acid residues with a molecular weight of 55,265 Da. The ORF of $\alpha$-L-AFase gene was introduced into the E. coli expression vector, $_p/RSET-B, and overexpressed in E. coli BL21. The purified recombinant $\alpha$-L-AFase showed the highest activity at 10$0^{\circ}C$ and pH 5.5. The purified enzyme appeared to have no metal cofactor requirement. The Km and specific activity values of the recombinant enzyme were 0.99 mM and 1,200 U/mg on p-nitrophenyl-$\alpha$-L-arabinofuranoside. It released only L-arabinose from sugar beet arabinan, sugar beet debranched arabinan and oat spelts arabinoxylan but had no activity onarabinogalactan and gum arabic. This result suggests that L-arabinose could be produced from natural polysaccharides using this enzyme. Mutant enzymes which Glu26, Glu172 and Glu281 residues were replaced to alanine, aspartic acid or glutamine caused Kcat to decrease by a factor of between 10$^3$ and 10$^4$. Glu172 and Glu281 residues of $\alpha$-L-AFase are seemed to be the acid/base and nucleophile in catalytic reaction, respectively, and Glu26 is supposed to playa key role in substrate binding.ng.

  • PDF