• International Journal of Industrial Entomology and Biomaterials
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• v.4 no.2
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• pp.109-115
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• 2002

With the objective of selecting suitable breeding resource material, 10 polyvoltine and 10 bivoltine breeds were drawn from the germplasm collection of Central Sericultural Research and Training Institute, Mysore, and evaluated for 3 seasons comprising one year (6 trials). Data were collected on seven traits of economic importance such as fecundity, pupation rate, cocoon yield, cocoon weight, cocoon shell weight, cocoon shell ratio and filament length, and statistically analysed with two-way classification, Joint scoring method and evaluation index. Significant seasonal variations (P < 0.01) were observed in both polyvoltine and bivoltine breeds. Polyvoltines BL27, BL36 and BL54 and bivoltines CSR2, CSR4 and Daizo scored highest ranking values in all the three methods. Hybridization was initiated based on larval markings and cocoon shapes. Seasonal variations were discussed.

• Korean Journal of Animal Reproduction
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• v.6 no.1
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• pp.36-38
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• 1982

For the purpose of identifing the reationship between the first egg day and other economic traits; egg production and egg weight, this experiment was divided 200 birds into four first egg day groups and observed egg number and egg weight every day during 11 months from 2nd December, 1979 to 31st October, 1980 at Animal farm, Yeungnam University. Birds showing 148∼155day in first egg day layed the most eggs among four groups and they produced not only 1.5g heavier eggs than the earlist first egg day group but also similar eggs compared with later matured birds. In egg production above 55g, 148∼155day group showed the best record as a 83.72% of total eggs and also the most egg mass during 11 months.

• International Journal of Industrial Entomology and Biomaterials
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• v.3 no.2
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• pp.153-155
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• 2001

Eight new three-way cross heterozygotic hybrid genotypes of the mulberry silkworm Bombyx mori, resulted from hybridization of multivoltine as female and bivoltine Fl hybrid as male component, have been evaluated for the cumulative effect of nine traits of commercial economic importance with the objective of selecting out the most prospective ones for their exploitation as an intermediate technology during unfavorable season. Five of them namely, G(P5${\times}$NBl8) (E.I. =57.23); S(NB18${\times}$P5) (E.I. : 55.48); S(P5${\times}$NBl8) (E.I. = 52.44); S(KBN${\times}$B7) (E.I. = 50.42) and S(NB7${\times}$KB) (E.I. : 50.16) have scored higher values of the Evaluation Index (E.I.) and could be selected in the same order for exploitation during unfavorable seasons in tropical climates.

• SUVANNABHUMI
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• v.13 no.2
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• pp.37-67
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• 2021

Mazu is considered the famous Chinese Sea Goddess, venerated by seafarers. Mazu belief was conducted in Meizhou County, Fujian Province. Soon worship of Mazu spread quickly to other parts of over the world, especially in Southeast Asia. In China, the Mazu belief was strongly influenced by marine culture, but its marine factors faded when Chinese immigrants had lived together with the Kinh people in Pho Hien (in the north of Vietnam) for more than four centuries. Applying the Acculturation theory, this paper aims to analyze the migration background of the Chinese and their integration into Kinh culture in Pho Hien. It can be said that historical, economic and social context, as well as native government policies have highly affected the manner and the rate of this belief's acculturation. Furthermore, the article explains the reasons for the fading of marine cultural traits and their replacement by the Kinh people's cultural factors in this belief.

• Fisheries and Aquatic Sciences
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• v.27 no.2
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• pp.57-65
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• 2024

Paiche (Arapaima gigas), is a colossal freshwater fish native to the Amazon basin. Its geographic distribution spans various regions, including Brazil, Peru, Colombia, and Guyana, making it a significant component of the aquatic ecosystems in this area. Beyond its ecological role, the paiche holds substantial importance as a valuable fish resource for local communities, providing sustenance and economic opportunities. This review provides a comprehensive analysis of the reproductive aspects of the paiche, based on information published from January 2000 to January 2022. It encompasses a wide range of reproductive characteristics, including sexual differentiation, age at first maturity, and identification techniques. Additionally, it offers an evaluation of various mating behaviors, highlighting their respective advantages and disadvantages. The review also explores genetic and behavioral traits observed in both wild and captive specimens, offering valuable insights for the effective management of breeding programs.

• Safety and Health at Work
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• v.12 no.3
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• pp.339-345
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• 2021

Background: Some researchers state that they are not yet able to provide a deep understanding of the underlying causes of unsafe behaviors (UBs). Therefore, the present study was conducted to investigate the attitudes and experiences of Iranian workers of UBs. Methods: This present study was conducted in 35 industries using a semistructured interview based on grounded theory. Forty participants were interviewed, including 13 industrial safety and health experts and 27 workers and supervisors. The analysis of the present study consisted of a three-step coding process including open, axial, and selective coding. Results: The results showed that the factors affecting UBs could be classified into three categories: organizational, individual, and socioeconomic factors. Organizational factors were divided into 6 parts: procedure and environmental conditions, communications, monitoring, organizational safety culture, resource allocation, and human resources. Socioeconomic factors had three subcategories: community safety culture, type of organizational ownership, and economic problems. Finally, the individual factors were classified into two categories of personality traits and individual competence. Conclusion: The results showed that organizational factors were the most categorized, and it is estimated that this factor has a more important role in the UBs. Of course, to better understand the close relationship between these factors and find the weight and importance of each factor, it needs to measure it with multicriteria decision systems.

• Journal of the Korean Data and Information Science Society
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• v.20 no.4
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• pp.639-647
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• 2009

From development of computer science, genetic algorithm has been applied to many fields for search like non-linear problem based on various variables and optimization process. Among others, in the data mining field, there are methods to select the best input variables for model accuracy and various predict models which were merged by using the genetic algorithm. In the meantime, to improve and preserve quality of the Hanwoo (Korean cattle) which is represented the agricultural industry in our country, we need to find out outstanding economical traits of Hanwoo in having specific genotype of single nucleotide polymorphism (SNP) which is inherited to next generation. According to, This research proposed the selecting method to find genotype of SNPs marker which affects economical traits of the Hanwoo by using the genetic algorithm. And we selected the best genotypes of the principal SNPs marker by applying to real data on Hanwoo genetic.

• Journal of Embryo Transfer
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• v.22 no.3
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• pp.167-172
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• 2007

Pituitary-specific transcription factor (PIT1) 유전자는 동물의 성장을 조절하고 근육 형성에 관여하는 유전자로서 최근에는 단일염기다형성 변이가 한우를 비롯한 동물에서 관찰되었으며, 한우의 경제 형질과 연관성이 보고되었다. 본 연구는 PIT1 유전자의 단일염기다형성 변이가 한우에서 성장 인자에 미치는 영향과 경제 형질에 대한 유전자형간 육종가와의 상관성에 대해 알아보고자 하였다. 도체 성적을 보유하고 있는 한우 후보종모우 집단 268두를 대상으로 PIT1 유전자 A1256G 다형성을 조사하여 유전자형의 빈도를 분석하였고 각각의 유전형에 따른 기본적인 검정 성적을 바탕으로 경제 형질과의 연관성을 비교 분석하였다. 268두의 한우에서 PIT1 유전자의 A1256G 유전자형 빈도는 MseI 제한 효소를 사용했을 때 A 유전자 빈도(0.37)보다 G 유전자 빈도(0.62)가 높게 나타났다. 통계적 분석을 통하여 각 유전자형에 대한 경제 형질과의 관련성을 분석한 결과, 각 유전자형 간에 12개월령 체중 (body weight 12, BW12)에서 유의한 차이를 보였고, 등지방 두께 육종가 (Backfat thickness-estimated breeding value, BF-EBV)와도 유의한 차이가 있었지만 (p<0.05), marbling score (MS), carcass weight (CW), M. longissimus dorsi area (LDA) 등 다른 경제 형질과는 통계학적으로 유의한 차이가 없었다. PIT1 유전자의 A1256G 다형성은 한우의 성장과 도체체중에 관여하는 인자로 작용하는 것으로 보여진다.

• International Journal of Industrial Entomology and Biomaterials
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• v.9 no.1
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• pp.47-51
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• 2004

To evolve silkworm hybrids with higher survival and productivity and easy and effective seed cocoon production, three new evolved bivoltine hybrids of silkworm (Bombyx mori L.), created with participation of sex-limited lines at eggs and larva stage were evaluated with control Super$_1$${\times}$Hessa$_2$ hybrid at Plovdiv Agrarian University during 2000 - 2002. ANOVA analysis was employed and the performance of hybrids was observed in respect of main quantitative traits. The results obtained show significant superiority of new hybrids T$_{15}$ 4/${\times}$TBV$_{2}$24/, XT$_{215}$38/${\times}$TV$_{3}$2/, XT$_{215}$38/${\times}$B$_{2}$6/ and their reciprocal crosses over the control. They were characterized with 99% hatchability of eggs, 93-95% silkworm survival, 2.32- 2.42 g cocoon weight, 53.5-55.7 cg shell weight, 22.9-23.1% shell ratio, 1,307-1,326 m filament length, 3.08-3.17 denier, 95-96% reelability, 44.4-45.1% silk ratio, 569-593 number of normal eggs per lying and 347-364 mg weight of normal eggs per lying. Newly evolved hybrids were manifested high productivity, 41.0-43.6 kg cocoon yield and 7.33-7.78 kg raw silk yield per one box (20,000$\pm$200 viable eggs), which significant surpass the control Super$_1$${\times}$Hessa$_2$ hybrid with 7.6-14.4% and 10.8-17.6%, respectively. T$_{15}$ 4/${\times}$TBV$_{2}$24/ and XT$_{215}$38/${\times}$TV$_{3}$2/ were considered as highly productive hybrids to local conditions and found suitable to rear in spring season.n.

• Korean Journal of Psychosomatic Medicine
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• v.5 no.1
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• pp.108-117
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• 1997

The purpose of this study is to evaluate the demographic characteristics, alcohol-related characteristics and personality trends in the participants of Alcoholics Anonymous. We compared the 33 participants of Alcoholics Anonymous maintaining abstinence at least over 6 months with 35 hospitalized alcoholic patients who have never attended Alcoholics Anonymous and 32 normal controls. The personality trend was measured by Catell's 16 Personality Factors Questionnaire. -Korean Version. The results were as follows: 1) In the demographic data, the participants of Alcoholics Anonymous were mainly 40's, graduated from high school, married, unemployed, middle class in economic state, first or second sons. 2) In alcohol related characteristics, age of first drinking was mainly distributed from 15 to 19 years-old. The most common psychosocial and environmental problem as precipitating factor of alcohol consumption was the problem with primary supper group and the second one was occupational. Most of them drank everyday, and admitted one time. 3) In the first stratum sources traits, the participants of Alcoholics Anonymous demonstrated significantly higher score than hospitalized alcoholic Patients, but lower than normal control in C-factor(stableness). They demonstrated significantly higher score than hospitalized alcoholic patients and normal controls in O-factor(Guilt-proness) and demonstrated significantly higher score than hospitalized alcoholic patients in Q3-factor(self-control). 4) In the second stratum sources traits, they demonstrated significantly higher score than hospitalized alcoholic patients in EXT-factor(extroversions), and lower score than hospitalized alcoholic patients and normal controls in IND-factor(independence).