• 수완나부미
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• 제7권1호
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• pp.59-76
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• 2015

This paper proposes an approach in Southeast Asian studies using a post-colonial framework in the study of post-colonial Southeast Asia. This framework is based on the sociology of knowledge that analyzes the dialectical relationship between science, ideology, and discourse. Post-colonial studies is critical of the concept of universality in science and posits that a scientific statement of a society cannot stand alone, but is made by authors themselves who produce, use, and claim the so-called scientific statement. Several concepts in post-colonial theories can be used to develop area studies, i.e. colonial discourse, subaltern, mimicry, and hybridity. Therefore, this study also explores these concepts to develop a more comprehensive understanding of Southeast Asian culture. The development of post-colonial theories can be used to respond to the hegemony of social theories from Europe and the United States. The main contribution of area studies in the field of the social sciences and humanities is in revealing the hidden interests behind the universal social sciences.

• 한국수정란이식학회지
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• 제12권1호
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• pp.1-10
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• 1997

The present study was conducted to investigate the influence of embryo cell stage at 18h post-fusion and oocyte preactivation on sebsequent in vitro developmental potential in the nuclear transplant rabbit embryos. The embryos of 16-cell stage were collected and synchronized to G$_1$ phase of 32-cell stage. The recipient cytoplasms were obtained by removing the first polar body and chromosome rnass from the oocytes collected by non-dis-ruptive microsurgery procedure. The separated G$_1$ phase blastomeres of 32-cell stage were injected into non-preactivated recipient cytoplasms. Otherwise, the enucleated recipient cytoplasms were preactivated by electrical stimulation at 18h post-hCG injection and the separated G$_1$ phase blastomeres of 32-cell stage were injected. Mter culture until 20h post-hOG injection, the nuclear transplant oocytes were electrofused by electrical stimulation. The fused nuclear transplant embryos were classified into 3~4-cell, 2-cell and 1-cell stage at 18 hrs post-fusion and cultured until the embryos reached blastocyst stage. The developmental rate to blastocyst stage was significantly (P <0.05) higher in all the reconstituted embryos of 3~4-cell stage(58.0%) than in 2 and icell stage. The developmental rate to blastocyst stage in the embryos of 3~4-cell stage at 18 hrs post-fusion was significantly (P<0.05) higher in the reconstituted without oocyte preactivation(77.8%) than in the oocyte-preactivated embryos (33.3%). These results indicated that the higher rate of in the in vitro development to blastocyst stage might be obtained form the embryos which were reconstituted with nuclear donor of G$_1$ phase and non-preactivated oocyte, and developed more rapidly for 18 hrs post-fusion.

• International Journal of Knowledge Content Development & Technology
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• 제14권1호
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• pp.19-31
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• 2024

In order to support the mission of the institution in which they are attached, academic libraries provide services in both manual and digital but COVID -19 pandemic that spanned between March and September, 2020 has changed the scenario. With particular reference to Nigeria, about 249,606 cases were confirmed and in order to curb the scourge of this deadly disease, physical academic activities were prevented by Nigeria Centre for Disease Control (NCDC). With this development, innovative tools became indispensable tools for successful delivery of library services in Nigerian academic libraries. Whether or not these tools are still in use for reformation of library service during post- Covid era remains unclear, hence, need for this study. This study examined librarians' use of innovative tools for information dissemination in Nigerian academic libraries during the post-Covid era using a descriptive survey design. Data were obtained both in quantitative and qualitative formats from one hundred and forty-four librarians as respondents. A total enumeration sampling technique was adopted because the population was minimal. Findings of the study revealed that innovative tools such as videoconferencing, WhatsApp, teleconferencing, Facebook, LinkedIn, and web-based learning applications are still in use by librarians for the dissemination of information during the post-Covid era. These tools are useful and beneficial to librarians during the post-COVID era, as they facilitate easy participation and engagement of library users in various discussions. Inadequate funding and lack of advanced technology skills were also identified as major impediments to the successful use of innovative tools for information dissemination. As a result, it was suggested that academic libraries throughout Nigeria prioritize staff training on the necessary digital skills needed to cope in this advanced technology era.

• 한국수산과학회지
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• 제47권6호
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• pp.853-859
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• 2014

The goal of this study was to evaluate the effects of cryoprotectants [dimethyl sulfoxide (DMSO), methanol, polyethylene glycol, and propylene glycol], cryoprotectant concentrations (10% and 20%), equilibration time (3, 10, and 30 min), cooling rate ($3^{\circ}$, $5^{\circ}$, $7^{\circ}$, and $10^{\circ}/min$), and straw size (0.25 and 0.5 mL) for sperm cryopreservation of tetraploid Pacific oysters. There was a significant difference among the four cryoprotectants, with 10% DMSO yielding the highest post-thaw survival and activity index of sperm. A significant relationship was observed between the cryoprotectant and its concentration. The sperm with equilibration times of 30 min yielded higher post-thaw survival and activity indices than those with 3 and 10 min equilibration times. The sperm cooled at a rate of $5^{\circ}/min$ yielded the highest post-thaw survival and activity index, and the results were significantly different from those observed for cooling at $7^{\circ}$ and $10^{\circ}/min$. Post-thaw survival and activity indices of sperm using a 0.25-mL straw were significantly higher than those using a 0.5-mL straw.

• 한국가금학회지
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• 제46권1호
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• pp.1-10
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• 2019

닭의 성장과정에서 어린 병아리의 발달에 가장 결정적인 시간으로 인식되는 시점은 부화 전 수일부터 부화 후 수일간이다. 부화 전후의 충분한 영양소 공급은 배아의 최종 발달과 병아리의 초기성장에 결정적 기여를 한다고 볼 수 있다. In ovo feeding에 의한 탄수화물 또는 아미노산의 공급은 부화 전 후의 소화장기 발달에 긍정적으로 작용한다. Prebiotics과 synbiotics 등에 대한 in ovo 주입은 건강한 미생물 균총 형성 등을 제공하여 영양적, 면역적 측면에서 좋은 결과들을 볼 수 있지만, 연구 결과의 수적 제한과 in ovo 주입의 양과 주입 부위 및 주입시기 등에 대한 추가적인 연구가 요구된다. 탄수화물을 이용한 in ovo feeding은 부화시 체중 증가를 보이지만 육계의 부화 후 능력에는 크게 영향을 보이지 않으며, 탄수화물 주입에 따른 부화율 감소는 기술적 요인(최적 농도, 주입 장소, 부피 등)이 크게 작용하는 것으로 보인다. In ovo feeding에 의한 아미노산 공급은 병아리의 세포성 면역과 체액성 면역을 높여 초기 면역 향상에 도움이 되는 것으로 판단된다. In ovo feeding은 부화 전후의 최적의 영양소 공급과 면역력 증진 및 절식에 따른 병아리의 스트레스를 완화시켜주는 실용적인 기술이 될 수 있다.

• 대한물리치료과학회지
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• 제8권1호
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• pp.799-811
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• 2001

The purpose of this study was to examine the effects of sensory integration therapy (SIT) on gross motor development and respiratory function of cerebral palsy children. The design of this study was one-group pre-and post-test design. Subjects of the study were arbitrarily chosen based on predetermined selection criteria among the cerebral palsy children who were treated as out-patients at one rehabilitation hospital in Kyunggi-do. The study was conducted between early April and late July in 2000. Twelve children were in the experimental group. A five-step SIT program was devised from a combination of SIT programs suggested by Ayres(1985) and Fink(1989), and an author-designed SIT program for cerebral palsy children. The experimental group was subjected to 20 to 30 minutes of SIT per session, two sessions a week for ten-week period. Collected data were statistically analyzed by SPSS PC for Wilcoxon signed rank test, and paired t-test. The results were as follows: 1. In gross motor development, post-experimental gross motor scores were higher compared to pre-experimental scores with statistical significance. 2. In respiratory function, post-experimental forced capacity vital scores were higher compared to pre-experimental scores with statistical significance. In conclusion, SIT was found to be effective in gross motor development and respiratory function. But, for the more effectiveness of SIT on gross motor development and respiratory function, further studies employing longer-time experiments are recommended.

• 한국발생생물학회지:발생과생식
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• 제18권4호
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• pp.241-249
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• 2014

Hyphessobrycon eques is a famous fish for ornamental fish market and aquarium. They are inhabit in regions of Amazon and Paraguay River basin. Serpae fishs were investigated 2-3 males are chased to female, and then males attempted to simulate the females abdomen. After fertilization, eggs were kept in incubators at $28^{\circ}C$. The fertilized eggs had adhesive and demesal characteristics and had a mean diameter of $0.92{\pm}0.01mm$. Larvae hatched at 16 hrs post fertilization. The hatched larvae averaged $2.90{\pm}0.16mm$ in total length ($L_T$). Complete yolk sac resorption and mouth opening occurred on the third day post hatching. At 45 days post hatching, the larvae were $12.5{\pm}1.60mm$ $L_T$ and had reached the juvenile stage.

• 한국군사과학기술학회지
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• 제20권1호
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• pp.48-54
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• 2017

A minimum turning circle test of vehicles is operated by using Real-Time Kinematic(RTK) surveying method which enhances the precision of the Global Positioning System(GPS). A procedure of the conventional method to obtain results is to take post processing after the test. Therefore, it is difficult to ensure results in an instant. This paper introduces developed process and equipment that can immediately obtain results after the minimum turning test without post processing.

• 한국발생생물학회지:발생과생식
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• 제15권3호
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• pp.231-237
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• 2011

The objective of this study was to elucidate the dynamics of microtubules in post-ovulatory aging in vivo and in vitro of mouse oocytes. The fresh ovulated oocytes were obtained from oviducts of superovulated female ICR mice at 16 hours after hCG injection. The post-ovulatory aged oocytes were collected at 24 and 48 hours after hCG injection from in vivo and in vitro, respectively. Immunocytochemistry was performed on ${\beta}$-tubulin and acetylated ${\alpha}$-tubulin. The microtubules were localized in the spindle assembly, which was barrel-shaped or slightly pointed at its poles and located peripherally in the fresh ovulated oocytes. The frequency of misaligned metaphase chromosomes were significantly increased in post-ovulatory aged oocytes after 48 hours of hCG injection. The spindle length and width of post-ovulatory aged oocytes were significantly different from those of fresh ovulated oocytes, respectively. The staining intensity of acetylated ${\alpha}$-tubulin showed stronger in post-ovulatory aged oocytes than that in the fresh ovulated oocytes. In the aged oocytes, the spindles had moved towards the center of the oocytes from their original peripheral position and elongated, compared with the fresh ovulated oocytes. Microtubule organizing centers were formed and observed in the cytoplasm of the aged oocytes. On the contrary, it was not observed in the fresh ovulated oocytes. The alteration of spindle formation and chromosomes alignment substantiates the poor development and the increase of disorders from the post-ovulatory aged oocytes. It might be important to fertilize on time in ovulated oocytes for the developmental competence of embryos with normal karyotypes.

• 한국어류학회지
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• 제36권1호
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• pp.20-29
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• 2024

삼세기(Hemitripterus villosus)는 새로운 양식 어종으로 대두되고 있으나, 자원량이 감소하고 있으며, 양식 어종에서 지속적인 문제로 나타나는 골격 기형에 대해 삼세기의 정상적인 골격발달 기준을 제시하고자 한다. 이 연구에 사용된 시료는 어획된 어미로부터 채란된 수정란을 부화시킨 자치어를 포르말린액에 고정한 뒤 Kawamura and Hosoya (1991) 염색법에 따라 염색하여 골격발달을 관찰하였다. 부화 직후 평균전장 13.65±0.71 mm (n=5) 일 때 부설골과 주상악골, 전상악골, 치골이 골화되기 시작하였고, 부화 후 65일째 평균전장 21.24±0.50 mm (n=5) 일 때 사골과 안상골이 골화하면서 두부가 완성되었다. 견대부는 부화 7일째 평균전장 14.61±0.52 mm (n=5) 일 때 쇄골, 주새개골, 관절골이 골화하기 시작하였으며, 부화 44일째 평균전장 18.15±0.61 mm (n=5) 일 때, 4개의 사출골이 골화되어 견대부가 완성되었다. 부화 10일째 평균 전장 14.80±0.65 mm (n=5) 일 때 척추골의 골화가 시작되었으며, 부화 후 54일째 평균전장 18.67±0.54 mm (n=5) 일 때 척추골 추체 39개가 골화하여, 부화 60일째 평균전장 20.25±0.45 mm (n=5) 일 때 척추골의 골격이 완성되었다. 이 연구는 삼세기 자치어의 골격발달에 대한 것으로 삼세기의 자치어 골격 기형의 기준과 기초자료 연구에 사용될 것이다.