• Title/Summary/Keyword: family life cycle

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New Record of Thapariella anastomusa (Trematoda: Thapariellidae) Metacercariae in Northern Thailand

  • Phalee, Waraporn;Phalee, Anawat;Wongsawad, Chalobol
    • Parasites, Hosts and Diseases
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    • v.56 no.1
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    • pp.49-52
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    • 2018
  • The family Thapariellidae has been reported in only 3 countries since 1990. The objective of this study was to identify Thapariella anastomusa metacercariae in snails in Thailand based on morphological traits using a light (LM) and a scanning electron microscope (SEM). A total of 94 Filopaludina snails were collected and identified as 50 F. martensi martensi and 44 F. doliaris. Metacercariae of T. anastomusa were recovered from the snails by the crushing method. The overall prevalence was 22.3% (21/94), and the mean intensity was 17.0 per snail. The prevalence in F. martensi martensi was 24.0% (12/50) and F. doliaris 20.5% (9/44) with the mean intensity of 18.8 and 14.8 per snail, respectively. SEM revealed traits such as a concave ventral body and well-developed oral and ventral suckers. This study represents the first report of T. anastomusa in South East Asia. While LM and SEM observations provide novel insights into T. anastomusa metacercarial morphology and life history, the trematode's life cycle remains unclear. To date, there has been no report of T. anastomusa causing infections in humans. However, the snails F. martensi martensi and F. doliaris carrying the infective stages of T. anastomosa are frequently consumed by Thai people. This consumption, particularly uncooked snails, may present a risk of Thapariella infections in humans.

A Study about the Effect of Energy Public Advertisement on the Energy conservation Consciousness and Behavior (에너지 절약광고가 에너지 절약의식과 행동에 미치는 영향에 관한 연구)

  • 최남숙
    • Journal of Families and Better Life
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    • v.8 no.2
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    • pp.119-134
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    • 1990
  • The purpose of this study were to investigate; The contact of housewives with governmental public advertisement about the energy conservation, general tendency about the energy conservation consciousness and behavior. For these purposed, a survey was conducted using questionnaires. Data analysis were conducted from 367 housewives with children in Seoul. Used statistical method were Frequency Distribution, percentile, Mean, one Way Anova, t-test, F-test, Pearson's Correlation, Multiple regression Analysis and Path Analysis. Major findings are as follows. 1) Level of public advertisement contact was low. In contrast to , level of energy conservation consciousness, consciousness change, and behavior was adequately high. 2) Statistically significant difference were found in advertisement contact according to the husband's age , Energy conservation consciousness change according to husband's occupation, and energy conservation behavior according to family life cycle. 3) Energy conservation consciousness changes were increased by advertisement contact. Energy conservation behaviors were increased by conservation consciousness and the degree of conservation consciousness change. 4) Governmental public advertisement about the energy conservation has both direct and indirect effect on the energy conservation behavior. From these finds, the following suggestions are made. Governmental effort about the energy conservation advertisement is needed to be activated. And the implications for the future study was need to incorporate the psychological variables in energy conservation study.

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A Comparative Study on Characteristics of Household Groups Depending on Decision-making of Current and Planned Credit Card Use (현재와 미래의 신용카드사용의 의사결정에 따른 가정특성에 관한 비교연구)

  • 김정훈
    • Journal of Families and Better Life
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    • v.7 no.2
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    • pp.61-70
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    • 1989
  • The present study investigated characteristics of Korean hourehelds in the expanding stage of the family life cycle depending on decision-making of current and planned credit card use. Households which were selected for this study had at least one dependent child enrolled in primary, middle, or high school, 1998. Regarding current and planned credit card use, credit card holder (n=379) and non-holder (n=259) households and continuous (n=331) and discontinous (n=47) credit card holder households were compared. Comparisons were perfomed by t-test, one-way ANOVA, and X2-test. Related factors were households demographic characteristics, financial management behavior, perceived financial well-being, and attitudes toward credit cards. Findings indicated that holder households tended to be younger, better educated, white-collar workers, and of a higher economic status than non-holders. In comparison to non-holder households, credit card holder households had more favorable atti udes toward credit cards, reported more financial management practices, experienced less financial unbalance, and were more satisfied with their household finaces. Compared to discontinuous credit card holder households, continuous card holder households tended to be larger, have better educated wives and husbands, and have husbands who were white-collar workers. They were more likely to have higher average monthly income than discontinuous holder households. Continuous card holder households also had more favorable attitudes toward credit cards, and more strongly believed and expected financial improvement of their households, compared to discontinuous card holder households.

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Changing Housing Wealth Effects of Home-owning Baby-boomers in the Seoul Metropolitan Area (수도권 거주 자가소유 베이비부머의 주택자산효과 변화 분석)

  • Lee, Hyunjeong;Yoon, Jungduck
    • Journal of the Korean housing association
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    • v.26 no.3
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    • pp.45-54
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    • 2015
  • The purpose of this research is to analyze the wealth effects of home-owning baby-boomers on household consumption on non-durable goods in the Seoul Metropolitan Area. In so doing, this empirical study utilized the Korean Labor and Income Panel Study (KLIPS) of 2002 and 2012. The statistical findings reveal that household wealth in the period had sharply risen in household income, asset, debt and consumption, and the substantial increase came from growing income and consumption embedded into an expansionary stage of the family life cycle. Further, housing wealth had a much greater effect on consumption expenditure than did financial asset in 2012 while financial wealth effect was larger than housing wealth effect in 2002. Housing wealth effects had become far stronger as the age of the baby-boomer householders increased. As the baby-boomers are close to the retirement stage, post-retirement income security becomes of concern, so that the wealth effect of real estate income as an income alternative for retirees is explicit. The results imply that retirement of baby-boomers is likely to reduce consumer spending, aggravating slowdown of the real economy. Thus, diversification of household asset portfolio in a pre-retirement period is of great significance in maintaining adequate household consumption in later life.

Changing patterns of marital love constructs among married men and women (결혼지속연수에 따른 한국 부부의 사랑구조의 변화 양상)

  • 강진경;신수진;최혜경
    • Journal of Families and Better Life
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    • v.19 no.5
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    • pp.51-66
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    • 2001
  • This study attempted to examine the changing patterns of marital love constructs among married men and women in Korea. It is based on our prior research that showed each of the 3 dimensions of marital love(intimacy, passion, and commitment derived from Stermberg’s Triangular Theory of Love) shaped U pattern as the marriage continued. We analyzed 1687 respondents’answers by principal axis factoring with contextual point of view including individual, familial, and socio-cultural development. The results are as follows. First, the love constructs of Korean men and women in their marriage show different qualitative patterns as the marriage continued. Second, intimacy is the most powerful indicator of love, coming out the first factor in all the stages of marital relationships. Third we can see marital stability from the locus of commitment with other components of love and it could be apply to marital educational program for promoting marital stability. Forth, passion is found separated behavioral from perceived dimension except the first marital stage. As conclusion, it need to analyze with family life cycle. birth and marriage cohort groups for examining closely the causes of this qualitative changes in marital relationships.

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Psychology of Middle Years (중년심리(中年心理))

  • Cho, Doo-Young
    • Korean Journal of Psychosomatic Medicine
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    • v.5 no.1
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    • pp.129-134
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    • 1997
  • The meddle years start when persons achieve maturity and end when they realize they are old, and we commonly call ages between thirty-live and sixty five the middle years. Thinking of life as a play, the middle years lead up to and away from the climax of the plot. In the early part of middle age, the man is the main support of his family, and is out to establish himself in his career. He is in a race toward success, and may acquire a sponsor who picks him out as a protege. In the middle part of middle age, the man is ready to come into his own and may break with his sponsor. Most persons are now at the height of their potential, know their areas of competence, and have the satisfaction of feeling in control in them. They need no longer prove themselves from day to day, for they are credited with past accomplishments. Some are caught in "promotion or success depression", and some continue to change jobs creating difficulties is readjustment. The more satisfactory changes usually occur within a career rather than through shifiting careers. In e later part of the middle age the man worries about his physical health, and experiences depression in facing the retirement. Woman frequently change the course of their lives some time between the ages of thirty-five and forty, and may resume their education or careers. Tee quarters of women are passing through "involutional melancholia".

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The Household Work Time Management Strategies on the Expanding Stage of the Family Life Cycle of Homemakers (확대기 가정주부의 가사노동 시간관리 전략)

  • 채옥희
    • Journal of Families and Better Life
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    • v.13 no.1
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    • pp.88-98
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    • 1995
  • 본 연구는 확대기 가정주부의 가사노동 시간관리 전략방안을 모색하기 위한 자료를 제공하려는 데 그 목적이 있으며, 연구결과를 요약하면 다음과 같다. 첫째, 주부의 가사노동시간은 1일 평균 6시간정도로서 80년대보다 감소한 것으로 나타났으며 유의적인 변수는 주부 의취업여부와 가족수이다. 둘째, 가사노동시간관리전략은 주부의 교육수준, 취업여부, 첫자녀나이, 월 총소득에 따라 의미있는 차이가 나타났다. 가사노동 시간관리전략의 하위영역인 가족성원간의 분담화는 주부의 취업여부, 첫 자녀나이, 가족수에 따라서 의미있는 차이가 나타났다. 가사노동 계통화에서는 가사노동 시간관리 전략의 하위영역중 가장 높은 평균점수를 나타냈으나 변수간에는 유의적인 차이가 나타나지 않았다. 가사노동 간소화는 주부의 교육수준, 취업여부, 결혼지속년수, 주거형태, 가족수, 월총소득에서 유의적인 차이가 나타난것으로 보아 대다수의 주부들이 가사노동을 간소화시키려는 의지가 있음을 알 수 있다. 가사노동 기계화는 주부의 교육수준, 월 총소득에 따라 유의적인 차이가 나탄났다. 세째, 가사노동시간에 영향을 미치는 가사노동시간관리전략은 간소화, 사회화 및 분담화로서 가사노동시간감소에 영향을 미치고 있으며, 계통화와 기계화는 가사노동 시간증가에 영향을 미치는 전략으로 나타났다.

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Overfishing and recent risk for collapse of fishery in coastal Mediterranean lagoon ecosystem (Karavasta lagoon, southeastern Adriatic sea)

  • Spase Shumka;Yukio Nagahama;Sarjmir Hoxha;Koji Asano
    • Fisheries and Aquatic Sciences
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    • v.26 no.4
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    • pp.294-303
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    • 2023
  • Beside that the fish species and their sub-populations are highly important as a keystone species in the coastal and marine ecosystem, there are very few studies on their presence, distribution and temporal variations within and around the lagoon ecosystems in Albania. This paper provides an updated review on the life cycle, fishery, exploitation state and management of the main species that are subject of commercial fishing in the Karavasta lagoon, southeastern Adriatic coast of Albania. Due to the fact that lagoons represent a continuum between continental and marine aquatic ecosystems they play a crucial role in species life cycles. Further on in the circumstances of rapid utilizations and environmental changes, anomalies in salinity and temperatures, accelerated anthropogenic influences their rate of vulnerability is highly increased. Following the requirements of the Water Framework Directive, transitional water, coastal lagoons and estuaries there is a need for urgent monitoring and management approaches. The commercial species include: European eel (Anguilla anguilla), species of Family Mugilidae (Mugil cephalus, Liza ramada, Liza salienes and Chelon labrosus), Seabream (Sparus aurata), Seabass (Dincentrarchus labrax), etc. Fish productivity is oscillating from maximum value of 61.95 kg/ha is recorded in period of 1975-80 and lower value of 31 kg/ha in year 2020. Our study highlights importance of fish and fishery long-term monitoring, and contributes to understand the driving factors in productivity, migration patterns and species ecology in the vital coastal ecosystems.

A Study on Middle and High School Girl Students' Menstruation Characteristics and their Menstruation Dysmenorrhea (중.고등학교 여학생의 월경 특성과 월경곤란증에 관한 연구)

  • Park, Young-Soo;Hong, Sun-Sim
    • The Journal of Korean Society for School & Community Health Education
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    • v.4
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    • pp.97-115
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    • 2003
  • Middle and high school girl students' menstruation characteristics, appearance of menstruation dysmenorrhea, and coping with the menstruation dysmenorrhea were examined in order to give information in instructing girl students about menstruation dysmenorrhea, in delivering health education in the school, and establishing health policy. 970 girl students in middle and high schools in Cheju-do were selected and surveyed using the questionnaire the author developed based on the previous studies. The findings are as follows. First, the age of first menstruation was average $12.9{\pm}1.22$ years. The younger they were, the earlier their first menstruation came. The most common menstrual cycle was such one that continuously irregular from the beginning or that regular and irregular cycle run together. The first irregular menstrual cycle changed regular one within 1 or 2 years. Most of the respondents had normal menstrual cycle of $21{\sim}35$ days and menstruation period of $3{\sim}8$ days. Second, symptom of menstruation dysmenorrhea was orderly; hurt in the underbelly, tired, hurt in the waist, and headache. It was higher with high school students than middle school students. For the most part, time of heavy menstruation dysmenorrhea was the 2nd day after menstruation starts and period of menstruation dysmenorrhea was 2 days. More than the half of the respondents felt that the present menstruation dysmenorrhea was similar with the first one and they felt not comport in daily life due to menstruation dysmenorrhea, and 'hard to live a normal life' was higher with the high school girl students than with the middle school students. Third, how to cope with menstruation dysmenorrhea was enough sleep, relax and rest, taking a hot water shower, listening to music or watching a movie, taking medicine, and doing excercise. Few of the respondents have ever visited a doctor due to menstruation dysmenorrhea, and the reason was mostly irregular menstruation and heavy dysmenorrhea. Forth, when they took medicine due to menstruation dysmenorrhea, they gathered information on the medicine from family members and friends, while extremely low from a pharmacist or a doctor. The most of them have ever took medicine during menstruation once and took standard dose. While excess dosage was higher with high school students than with middle school students. From these findings, a good many girls are experiencing menstruation dysmenorrhea since their first menstruation. To discover early the severely abnormal findings and to treat, more interest from home and school, counseling and sexual education on time, and expert's diagnosis are necessary. Rather than unconditionally taking pain-relievers which can plainly solve the pain, continuous health education at home and in the school should be carried on for the girls to practice proper measures one think effective or an expert recommends.

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The Comparative Study of Software Optimal Release Time Based on Gamma Exponential and Non-exponential Family Distribution Model (지수 및 비지수족 분포 모형에 근거한 소프트웨어 최적방출시기에 관한 비교 연구)

  • Kim, Hee-Cheul;Shin, Hyun-Cheul
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.5
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    • pp.125-132
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    • 2010
  • Decision problem called an optimal release policies, after testing a software system in development phase and transfer it to the user, is studied. The applied model of release time exploited infinite non-homogeneous Poisson process. This infinite non-homogeneous Poisson process is a model which reflects the possibility of introducing new faults when correcting or modifying the software. The failure life-cycle distribution used exponential and non-exponential family which has various intensity. Thus, software release policies which minimize a total average software cost of development and maintenance under the constraint of satisfying a software reliability requirement becomes an optimal release policies. In a numerical example, after trend test applied and estimated the parameters using maximum likelihood estimation of inter-failure time data, estimated software optimal release time.