• International Journal of Industrial Entomology and Biomaterials
• /
• v.10 no.2
• /
• pp.87-94
• /
• 2005

Mating is an essential behavioural social event in the life cycle of silkworm, Bombyx mori (L.) for the perpetuation of population. A number of intrinsic and extrinsic factors and events of significant importance are involved in successful mating and egg deposition by an adult silk moth which besides biochemical, physiological and environmental factors also includes attraction of reproductively competent male and female moth for mating, duration and frequency of mating, age of moth at the time of mating, reuse of male moth in the production of eggs etc. An attempt has been made in this review article to elucidate briefly the behaviour of male towards female moth after eclosion, impact of duration and frequency of mating on egg deposition and oviposition, reuse of mated male moth in the production of quality and quantity eggs etc. in the silk-worm, B. mori and its significance in silkworm seed production.

• Journal of the Korean Society of Systems Engineering
• /
• v.7 no.2
• /
• pp.1-5
• /
• 2011

The purpose of the Environment Design (ED) for Main Control Room (MCR) of Nuclear Power Plant (NPP) is to provide and create an optimal working space to be free from physical, physiological and mental stress as well as environmental discomfort, based on the previous environment design experiences and to recommend the best ED including the color, the lighting and the interior design. Environment Design consists of three main areas: Human factor engineering design, Interior design with color design, and Lighting design. These design areas have been interactively cooperated in a way that each design specialist would share the objectives and concepts of the Environment Design for MCR. The specialists for Human Factors Engineering design had a corporative role in such a way to provide the guidelines for MCR design suitability of Interior and Lighting design considering the Human System Interface (HSI) safety concerns. This paper describes fruitful efforts to create the best fit for MCR ED among several design proposals with the design recommendations, impacts, and contributions to NPP environment.

• BMB Reports
• /
• v.49 no.5
• /
• pp.249-254
• /
• 2016

All living things share some common life processes, such as growth and reproduction, and have the ability to respond to their environment. However, each type of organism has its own specialized way of managing biological events. Genetic sequences determine phenotypic and physiological traits. Based on genetic information, comparative genomics has been used to delineate the differences and similarities between various genomes, and significant progress has been made in understanding regenerative biology by comparing the genomes of a variety of lower animal models of regeneration, such as planaria, zebra fish, and newts. However, the genome of lizards has been relatively ignored until recently, even though lizards have been studied as an excellent amniote model of tissue regeneration. Very recently, whole genome sequences of lizards have been uncovered, and several attempts have been made to find regeneration factors based on genetic information. In this article, recent advances in comparative analysis of the lizard genome are introduced, and their biological implications and putative applications for regenerative medicine and stem cell biology are discussed.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.19 no.5
• /
• pp.1112-1119
• /
• 2005

The dream is a well-known experience in the routine life. It is necessary to consider the dream to modality of diagnosis because many evidences that the dream represents the physiologic and pathologic changes in the human have been proved in recent days. The oneironosus(病夢) was caused by three factors, which are the external stresses of the body, malfunction of Jang-Bu(臟腑) and irregular of Yin-Yang(陰陽) and Gi-blood(氣血). The oneironosus(病夢) reflects the location, characteristics, progression and prognosis of the disease. In addition, it predicts the development of disease. The principle of treatment for the oneironosus(病夢) is making an effort for the stabilization of mind by eradicating the internal and external factors that make the spirit(神) been unstable.

• Animal cells and systems
• /
• v.16 no.1
• /
• pp.1-10
• /
• 2012

Most living organisms synchronize their physiological and behavioral activities with the daily changes in the environment using intrinsic time-keeping systems called circadian clocks. In mammals, the key molecular features of the internal clock are transcription- and translational-based negative feedback loops, in which clock-specific transcription factors activate the periodic expression of their own repressors, thereby generating the circadian rhythms. CLOCK and BMAL1, the basic helix-loop-helix (bHLH)/PAS transcription factors, constitute the positive limb of the molecular clock oscillator. Recent investigations have shown that various levels of posttranslational regulation work in concert with CLOCK/BMAL1 in mediating circadian and cellular stimuli to control and reset the circadian rhythmicity. Here we review how the CLOCK and BMAL1 activities are regulated by intracellular distribution, posttranslational modification, and the recruitment of various epigenetic regulators in response to circadian and cellular signaling pathways.

• Journal of Korean Academy of Nursing
• /
• v.35 no.4
• /
• pp.701-708
• /
• 2005

Purpose. This study examined the characteristics of fatigue and the relationship between fatigue and its related factors in Korean patients on hemodialysis. Methods. A cross-sectional correlational study was conducted with 104 patients on hemodialysis in Seoul, Korea. Finding. Of a total of 104 subjects, eighty-one ($77.9\%$) complained of fatigue. Fatigue severity was measured by the self-rating Visual Analogue Scale-Fatigue (VAS-F) with a mean score of 36.5 (SD = 17.49, range 2 - 81). The mean duration of fatigue was 3.8 hours (SD = 5.3, range 0 - 24). Depression was most significantly correlated with fatigue (beta = .43, p<.00), with interdialytic weight gain (beta = .25, p<.05) being the second most significant correlate. Conclusion. This study shows that nursing interventions for patients who experience fatigue while on hemodialysis should be focused on both psychological problems, such as depression, as well as on physiological problems, such as interdialytic weight gain.

• Journal of the Korean Society of Safety
• /
• v.18 no.4
• /
• pp.143-147
• /
• 2003

The present investigation examined hammering performance, physiological response, preceived exertion, and user preference with regard to hammering in vertical (wall) and horizontal (bench) orientations, and with regard to using two different hammers. Ten male subjects participated in the experiment. The results support previous findings that horizontally oriented hammering is faster than vertically oriented hammering. In addition, the results suggest that hammer differences can affect hammering performance and perceived exertion; although, the exact contributions of specific design characteristics could not be quantitatively determined. However, participants subjectively identified handle design, weight, and mass distribution as critical factors.

• Journal of Embryo Transfer
• /
• v.25 no.3
• /
• pp.155-159
• /
• 2010

The objective of this study was to determine physiological and mechanical factors effecting on the pregnancy rates following artificial insemination in dairy cattle. Estrus for artificial insemination of cows was checked whether the outflow of mucus from the elements was out flow or not. There were no significant difference of gestation rates with mucus release (31.76%) and without mucus release (24.03%). The pregnancy rates were 39.02% in 10~20mm of follicle size group and 27.08% (p<0.05) in 20~30mm diameter of the follicles. There were not different pregnancy rates between twice inseminated dairy cattle and more than 3 times inseminated cattle. The pregnancy rate was 28.57% under automatic milking system. In contrast, under artificial milking system pregnancy rate was 56.85%. Two systems significantly (p<0.05) were different. These results suggest that pregnancy rates were not effected by physiological system, but mechanical condition.

• Asian Journal of Atmospheric Environment
• /
• v.5 no.2
• /
• pp.65-78
• /
• 2011

Ozone ($O_3$) is a main component of photochemical oxidants, and a phytotoxic anthropogenic air pollutant. In North America and Europe, the current concentration of $O_3$ has been shown to have significant adverse effects on vegetation. In this review, we summarize the experimental studies on the effects of $O_3$ on the growth and photosynthetic activity of Japanese forest tree species to understand the present knowledge and provide sound basis for future research toward the assessment of $O_3$ impacts on Japanese forest ecosystem. Since the 1990s, several Japanese researchers have conducted the experimental studies on the effects of ambient levels of $O_3$ on growth and physiological functions such as net photosynthesis of Japanese forest tree species. Although the sensitivity to $O_3$ of whole-plant growth is quite different among the species, it was suggested that the current ambient levels of $O_3$ in Japan are high enough to adversely affect growth and photosynthetic activity of Japanese forest tree species classified into high $O_3$ sensitivity group such as Japanese beech. The N load to soil has been shown to reduce the sensitivity to $O_3$ of Japanese larch and increase that of Japanese beech. To establish the critical level of $O_3$ for protecting Japanese forest tree species, therefore, it is necessary to take into account the N deposition from the atmosphere. There is little information on the combined effects of $O_3$ and other environmental factors such as elevated $CO_2$ and drought on growth and physiological functions of Japanese forest tree species. Therefore, it is necessary to promote the experimental study and accumulate the information on the combined effects of $O_3$ and any other abiotic environmental factors on Japanese forest tree species.

• Culinary science and hospitality research
• /
• v.15 no.3
• /
• pp.15-28
• /
• 2009

The purpose of this study is to examine customer behavior when choosing event menu at the banquet restaurant of a five-star hotel and analyze the factors of choosing the menu and its customer satisfaction. Based on the results of this study, it is possible for hotel mangers to develop good banquet event menu choices and use them when changing menu. This study adopts the Enter Method, and "t" defines 3 variables such as physiological intent, quality of food, and reasonable price. However, the other factors such as sensory images of food, contents of menu, promotion menu, cleanliness and services prove not to be important variables in this study. Among most important 3 variables, quality of food with the highest figure($\beta$ .416) is the most important variable to customer satisfaction followed by physiological intent ($\beta$ .283) and resonable price($\beta$ .134).