• 제목/요약/키워드: Borneo

검색결과 36건 처리시간 0.025초

Significant Genotype Difference in the CYP2E1 PstI Polymorphism of Indigenous Groups in Sabah, Malaysia with Asian and Non-Asian Populations

  • Goh, Lucky Poh Wah;Chong, Eric Tzyy Jiann;Chua, Kek Heng;Chuah, Jitt Aun;Lee, Ping-Chin
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권17호
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    • pp.7377-7381
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    • 2014
  • CYP2E1 PstI polymorphism G-1259C (rs3813867) genotype distributions vary significantly among different populations and are associated with both diseases, like cancer, and adverse drug effects. To date, there have been limited genotype distributions and allele frequencies of this polymorphism reported in the three major indigenous ethnic groups (KadazanDusun, Bajau, and Rungus) in Sabah, also known as North Borneo. The aim of this study was to investigate the genotype distributions and allele frequencies of the CYP2E1 PstI polymorphism G-1259C in these three major indigenous peoples in Sabah. A total of 640 healthy individuals from the three dominant indigenous groups were recruited for this study. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) at G-1259C polymorphic site of CYP2E1 gene was performed using the Pst I restriction enzyme. Fragments were analyzed using agarose gel electrophoresis and confirmed by direct sequencing. Overall, the allele frequencies were 90.3% for c1 allele and 9.7% for c2 allele. The genotype frequencies for c1/c1, c1/c2 and c2/c2 were observed as 80.9%, 18.8%, and 0.3%, respectively. A highly statistical significant difference (p<0.001) was observed in the genotype distributions between indigenous groups in Sabah with all Asian and non-Asian populations. However, among these three indigenous groups, there was no statistical significant difference (p>0.001) in their genotype distributions. The three major indigenous ethnic groups in Sabah show unique genotype distributions when compared with other populations. This finding indicates the importance of establishing the genotype distributions of CYP2E1 PstI polymorphism in the indigenous populations.

서해(西海) 대청도(大靑島)에서 발견된 아열대성(亞熱帶性) 나방류 10종 (Discovery of the Ten Species of Subtropical-moths in Is. Daecheong, Korea)

  • 박규택;강태민;김민영;채민영;지은미;배양섭
    • 한국응용곤충학회지
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    • 제45권3호
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    • pp.261-268
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    • 2006
  • 서해의 백령도와 대청도의 곤충조사에서 우리나라에 알려지지 않은 아열대성 나방류 10종이 처음으로 발견되었다. 그 중Squamura sp.는 Metarbelidae (신칭: 남방굴벌레나방과(科))에 속하며, 말레이시아나 수마트라 등지에 분포하고 있는 종으로 한반도에서 발견된 것은 의외의 일이다. 그 외 9종(Zeuzera sp., Setora baibarana (Matsumura), Toccolosida rubriceps Walker, Hyposidra talaca (Walker), Celerena signata Warren, Creatonotos transiens (Walker), Vitessa suradeva Moore, Callambulyx rubricosa (Walker), Dodusa nobilis Walker)은 모두 남방계 종들임이 확인되었다.

Suitable Dietary Protein/Lipid Ratio for Hybrid, Female Red Sea Bream Pagrus major and Male Black Sea Bream Acanthopagrus schlegeli in the Juvenile Stage, Compared with Red Sea Bream

  • Kim, Yang-Su;Ji, Seung-Cheol;Biswas, Amal;Biswas, Biswajit Kumar;Yong, Annita Seok Kian;Takaoka, Osamu;Jeong, Gwan-Sik;Murata, Osamu;Takii, Kenji
    • Fisheries and Aquatic Sciences
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    • 제17권1호
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    • pp.75-84
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    • 2014
  • To determine a suitable dietary protein/lipid (CP/CL) ratio in the early juvenile stages of hybrid porgy ($F_1$), female red sea bream (RSB) ${\times}$ male black sea bream, five diets with various CP/CL ratios-60/7, 55/12, 51/17, 46/23, and 41/28-were prepared and provided to juveniles in triplicate. At the smaller juvenile stage, $F_1$, weighing 0.32 g, a significantly higher specific growth rate (SGR) and feed efficiency (FE) were seen with 60/7 and 55/12 diets. However, in RSB weighing 0.26 g, SGR and FE were higher with the 60/7 diet than the other diets at $21^{\circ}C$. At the larger juvenile stage, $F_1$, weighing 3.7 g, there was no significant difference in SGR or FE among the diets, but RSB weighing 4.0 g fed 60/7, 55/12, and 51/17 diets had higher SGR and FE than 46/23 and 41/28 diets at $24^{\circ}C$. Moreover, survival and apparent nutrient retention of $F_1$ at both stages were significantly higher than those in RSB. These results indicate that both $F_1$ and RSB weighing ca. 0.3 g require a higher dietary CP/CL than those weighing ca. 4 g. Additionally, $F_1$ in both trials showed the suitability of a lower dietary CP/CL than RSB, indicating that mass production of $F_1$ juveniles will be more economical than RSB.

New Species of Termitomyces (Lyophyllaceae, Basidiomycota) from Sabah (Northern Borneo), Malaysia

  • Seelan, Jaya Seelan Sathiya;Yee, Chong Shu;Fui, Foo She;Dawood, Mahadimenakbar;Tan, Yee Shin;Kim, Min-Ji;Park, Myung Soo;Lim, Young Woon
    • Mycobiology
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    • 제48권2호
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    • pp.95-103
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    • 2020
  • The genus Termitomyces (Lyophyllaceae, Basidiomycota) is often associated with fungus-feeding termites (Macrotermitinae) due to their strong symbiotic relationships. The genus is widely found exclusively in certain regions of Africa and Asia. They are recognized as edible mushroom within Southeast Asia as well. But it is often misidentified based on morphology by the local communities especially in Malaysia for Chlorophyllum molybdites which is a highly poisonous mushroom. Thus, it is necessary to study the genus for Malaysia with the synergy of using both morphological and molecular identification. In this study, we aim to describe another new species as an addition to the genus Termitomyces found within Sabah, Malaysia. We generated two new sequences (nrLSU and mtSSU) for the new species and a total of 28 nrLSU and mtSSU sequences were retrieved from GenBank for the phylogenetic analysis using maximum likelihood and Bayesian inferences. We identified that the new collection from Sabah province is a new species and named as Termitomyces gilvus based on the termites found in the mound. A phylogeny tree made from the concatenated genes of LSU and mtSSU suggests that T. gilvus is closely related to T. bulborhizus from China. According to our results, the combination of molecular and morphology proved to be a robust approach to re-evaluate the taxonomic status of Termitomyces species in Malaysia. Additional surveys are needed to verify the species diversity and clarify their geographic distribution.

바쿤 가배수로 터널의 최적지보설계 (Rock Support Design of Bakun Tunnelling Project in Sarawak, Malaysia)

  • 지왕률
    • 터널과지하공간
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    • 제8권4호
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    • pp.296-306
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    • 1998
  • 바쿤 수력발전 공사계획은 대형댐과 2,520 MW 출력량의 수력발전소를 건설하는 대형 턴키 프로젝트이며 현재는 발전댐 건설에 앞서 3개의 가베수 터널이 시공중에 있다. 바쿤 지역은 유기물 함량이 높아 쉽게 부서지는 퇴적지층으로 이러한 열대우림지역에서 가배수로 터널의 지보설계를 위해 전체적인 암층단위를 공학적인 목적과 역학적 거동양상을 토대로 주도적인 암종에 따라 분류하였다. 또한 이러한 암층단위를 기준으로 풍화정도와 절리의 빈도 및 특성을 고려하여 다시 4개의 암반유형으로 분류하였고 또한 가배수로 터널의 특성과 현재의 지반특성과 현재의 지반특성을 고려하여 지반내 swelling 광물의 존재를 확인하였다. 다양한 암반과 지보조건에 적합한 다양한 Swellex 록볼트를 적용하였으며 지지력이 낮은 록볼트를 사용할 대 발생되는 문제는 볼트의 면적에 따른 록볼트의 양을 조절하여 해결하였다. 또한 계측결과와 전산해석 결과에 따라 지보재의 설치간격, 수량을 조절하였으며, 계측결과에 따른 역해석을 실시하여 최적의 지보패턴을 결정하였다.

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Science, Commerce, and Imperial Expansion in British Travel Literature: Hugh Clifford's and Joseph Conrad's Malay Fiction

  • Kil, Hye Ryoung
    • 영어영문학
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    • 제57권6호
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    • pp.1151-1171
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    • 2011
  • Conrad's novels, specifically the Lingard Trilogy-Almayer's Folly, An Outcast of the Islands, and The Rescue-and Lord Jim, set in the Southeast Asian or Malay Archipelago can be considered travel literature that played a significant role in British imperial expansion. Conrad's Malay novels were based not only on his experience in the region during his commercial journey but also on information from earlier travel writings about the Malays and their customs, including James Brooke's journals. The English traders in Conrad's novels, namely Lingard and Jim, were partly modeled on Brooke, the White Rajah, who founded and ruled the English colony on the northwest of Borneo in the 1840s. The white traders in Conrad's novels, who act as enlightened rulers, represent the British commercial expansionism, which was obscured by the phenomenon of the civilizing mission in the late nineteenth century. On the other hand, the colonial official Clifford's tales and novels about British Malaya demonstrate the typical travel accounts of the late nineteenth century that stress the civilizing mission over commercial exploitation. The concept of the enlightening mission was rooted in evolutionary anthropological thinking, which developed as part of the natural history in the early nineteenth century. In fact, the development of natural history, stimulating British expansion in search of commercially exploitable resources and lands, enabled travel writing as the collection of natural knowledge to become a profitable business. In Conrad, the white characters are mainly traders acting as colonial rulers, while in Clifford, they are scientific rulers with their commercial interests rarely apparent. In sum, Conrad's novels reveal that the new imperialism of the civilizing mission is still a commercial one, which disturbs rather than contributes to the imperial expansion-in contrast to other travel literature such as Clifford's.