• Asian Pacific Journal of Cancer Prevention
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• 제17권7호
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• pp.3587-3593
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• 2016

Purpose: To analyze risk factors for postmenopausal breast cancer. Methods: The present case-control study included 600 women treated at a cancer center reference hospital in a municipality in the South of Brazil. Results: Totals of 100 patients and 500 control subjects were evaluated. The mean age of the women was $52.5{\pm}11.9$ years; the average was $57.4{\pm}11.8$ years, and the average age of the control subjects was $51.5{\pm}11.7$ years. The risk factors for breast cancer that were considered included an age ${\geq}40$ years, postmenopausal status, a body mass index $(BMI){\geq}30kg/m^2$, and reduced physical activity. Variables like postmenopausal status and an obese BMI were associated with cases of breast cancer. Women who were postmenopausal or obese were 3.80 or 1.80 times more likely to develop breast cancer, respectively, and physically inactive women were 1.72 times more likely to develop breast cancer. Conclusions: Obesity and postmenopausal status are associated with the occurrence of breast cancer in this population. Being over 40 years of age was also a statistically significant factor for postmenopausal women.

• 한국가축번식학회지
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• 제17권4호
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• pp.295-303
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• 1994

The present study was conducted to examine the reprodutive performance and organs autopsy of culled dairy cows at alpine area. 795 culled dairy cows were managed and 206 culled dairy cows were examined by autopsy of reproductive organs at above 800m of sea level around the Daegwallryoung alpine area. The results of this study were at follows ; 1. Age and parity of culled dairy cows were 60.8 months and 3.0, respectively. 2. Age of first AI of heifer was 18.7 months, and age of pregnancy and parturition of heifer were 19.5 months and 28.6 months, respectively. 3. Al time per pregnancy was 1.7 and time of pregnancy after parturition, pregnancy period and calving interval were 140.9, 279.6 and 424.9 days, respectively. 4. Culled months after last parturition was 4.3 and the highest urogenital deseases of culled reason were 358(45.0%). 5. Reproductive organs deseases by autopsy were 120(58.4%), the highest ovary disease were 75(43.6%). 6. The highest ovary adhesions of reproductive organ diseases were 46(26.7%), infundibulum adhesion, obstruction of the oviduct and endometritis were 38(22.1%), 15(8.7%), and 14(8.2%), respectively. 7. In culled dairy cow for the reproductive organ disease, parity, age, culled months and AI number after last parturition were 3.2, 66.5 months, 7.9 months and 2.1, respectively.

• Applied Microscopy
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• 제22권1호
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• pp.113-127
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• 1992

The present study was investigated to elucidate the effects of chlorambucil the heart tissue of various-aged rats. The male rats ranging from 3 to 36 months were used. The cytochemical and biochemical changes in myocardium of the rats were studied in the aspect of free radical roles in aging process. With the goals of evaluating the potential roles of free radicals in aging process, evidence was shought for alterations of myocardial lipid peroxide levels in control and chlorambucil treated rats. The result are summarized as follows: 1. Cytochemical studies showed that the activities of $Mg^{++}$-ATPase and succinic dehydrogenase increased with age. However, these enzyme activities were decreased with treatment of chlorambucil, when compared with control group. Interestingly it was observed that chlorambucil treatment increased the activity of acid phosphatase from 6 months upto 18 months, and decreased after 18 months. 2. The lipid peroxide level in myocatdium was increased with age; chlorambucil-treated group was higher than that of control group. 3. Age-dependent increase in activities of monoamine oxidase, xanthine oxidase and catalase was observed. But the increase of catalase activity was higher than that of monoamine oxidase and xanthine oxidase activity in control group. However, in chlorambucil-treated group, age-dependent decrease of these enzyme activities was observed, and catalase activity was more significant particularly with regard to other enzymes. In consequently, the morphological alterationsof myocardium due to chlorambucil treatment was exclusively observed. We demonstrate that this alteration is occured by lipid peroxidation upon chlorambucil treatment.

• 가족자원경영과 정책
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• 제11권2호
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• pp.1-19
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• 2007

The purpose of this study was to analyze the affecting factors on employed mens' retirement and reemployment decision making. The focus was on the process of employed mens' decision on retirement and their reemployment decision after retirement from present job. The major findings were as follows ; First, the employed men who had a retirement plan were having more household income, more household net asset, more savings and investment for elderly life, and more positive attitude toward retirement. Second, the major factors affecting on having retirement plan or not were employed mens' age, household income, expected income after retirement, savings and investment for elderly life, job, and attitude toward retirement. Third, the major affecting factors on expected retirement age were employed mens' age, health status, job security, and attitude toward retirement. Forth, the employed mens' reemployment decision was affected from their household income, expected income after retirement, pension ownership, and attitude toward retirement. From the findings, it can be concluded that the employed mens' age, economic status, and attitude toward retirement played a important role in the process of retirement and reemployment decision making.

• 아동학회지
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• 제13권1호
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• pp.65-79
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• 1992

The present study investigated perception of social authority by children and adolescents removed from illegally built shacks 181 children and adolescents from illegally built shacks and 200 comparative respondants of middle socioeconomic status were investigated. Perception of the social authority figures was classified by 5 categories(self, family member, neighbor, teacher and peer. social authority, collective member) in terms of contactable possibility and psychological distance. The data were analyzed by Hest. The results showed that (1) compared with their middle class peers(M group) children and adolescents from illegally built shacks(S group) perceived social authority figures positively, while they perceived their own family members less favorably. (2) The S group regarded their teachers as more valuable and able than M group. (3) The S group perceived social authority figures, i. e., statemen. polices. national assembly members. public servants and enterprisers, less favorably than their family members. (4) There were main effects of the age and sex variables of respondants. (5) There was an interaction effects between the age. sex and SES variables and was also interation effect between age. sex and task variables in cognition for the social authority figures. There was also an interaction effect between age and SES variables in perception for the personal traits of the social authority figures.

• Neonatal Medicine
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• 제28권2호
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• pp.94-98
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• 2021

Neonatal diabetes mellitus (NDM) is a rare disease that occurs at less than 6 months of age and is presumably caused by a mutation in the gene that affects pancreatic beta-cell function. Approximately 80% of NDM cases reveal a known genetic mutation, and mutations in potassium inwardly rectifying channel subfamily J member 11 (KCNJ11) and ABCC8 affecting the pancreatic beta-cell adenosine triphosphate-sensitive potassium channel may be treated with oral sulfonylurea. Early recognition of mutations in KCNJ11 and ABCC8 is important because early administration of sulfonylurea can not only control blood glucose levels but also improve neurodevelopmental outcomes. In the present study, we report a case of NDM that initially presented as diabetic ketoacidosis at the age of 1 month, accompanied by seizures during hospitalization. After confirmation of the KCNJ11 gene mutation (c.989A>C), we started administering oral sulfonylurea (glimepiride) at the age of 2 months. After gradually increasing the dosage of glimepiride, insulin was discontinued at the age of 3 months. To date, the infant's blood glucose levels have been well controlled without significant hypoglycemic events. No further episodes of seizures have occurred, and his developmental status is favorable.

• The Journal of Asian Finance, Economics and Business
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• 제8권1호
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• pp.285-294
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• 2021

The most basic forces of stock market are supply and demand, which increases or decreases on the basis of information. The crucial point is that investor's perception is depending on the availability of information at a particular time. But it is very difficult to understand what they take from a piece of information, and the decision varies from person to person; hence, it is important to understand the behavior of investors in the stock market. In this context, this study is focusing on behavioral investor-type diagnosis testing among financial market players (FMPs) in Oman. The study conducted a review of behavioral types among stock market investors, and attempted to assess the influence of age and gender factors on investor bias. It classifies investor type biases according to the gender and age of respondents. This study employs primary data with a structured questionnaire distributed to an equal number of male and female stock market investors in Muscat Securities Market. The study used sample t-test, one-way ANOVA, CATPCA and ALSCAL to identify the significant difference among age, gender and experience of the respondents. The present study found that all of the investors are influenced by different cognitive biases and, moreover, it depends on investor's gender.

• 한국수산과학회지
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• 제54권1호
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• pp.53-63
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• 2021

Age structure and growth of white croaker Pennahia argentata were estimated an analysis of otoliths. Fish specimens were collected from the Southern Sea of Korea from January to December 2018. A thin section method was used for age determination because otoliths of white croaker are oval in shape and large in size. Otoliths were cut vertically into 0.4-0.5 mm thick sections with an electric saw (Micracut 125). Monthly changes in the marginal index indicated that rings (opaque zone) were formed once a year in August. The estimated von Bertalanffy growth equation estimated by a non-linear regression were L∞=34.71 (1-e0.38(t+0.80)). In the present study, the oldest female was 8 years old and the male was 7 years old.

• 대한통합의학회지
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• 제8권4호
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• pp.59-66
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• 2020

Purpose : This study aimed to present normative data for older Korean adults completing the Yonsei dual task cognitive screening test (Y-DuCog) and identify changes in cognitive function on the Montreal Cognitive Assessment - Korean (MoCA-K) with age. Methods : From May 2019 to August 2019, 195 healthy adults aged ≥60 years participated in this study. All participants completed the Y-DuCog to assess their dual-task performance and the MoCA-K to assess their cognitive function. Participants were divided into three groups based on their age: 60~69 years, 70~79 years, and ≥80 years. Results : The results of the Y-DuCog showed that dual-task performance time, effect, and correct response rate decreased significantly with age (p<.001). Scores from the three groups showed differences on all items (p<.001). Cognitive function on the MoCA-K also decreased significantly with age (mean score ± standard deviation [SD]; 27.33 ± 2.61 in subjects aged 60~69 years; 24.82 ± 3.20 in subjects aged 70~79 years; and 22.10 ± 4.91 in subjects aged ≥80 years; p<.001). Conclusions : Occupational therapists should be aware of the decline in cognitive function and dual-task performance time, effect, and correct response rate in older adults and consider interventions to treat this decline. Further studies are needed with larger groups of participants to examine factors, such as sex and education, that may impact dual-task performance and cognitive function.

• 한국지형학회지
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• 제27권4호
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• pp.41-51
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• 2020

The Cheolwon-Pyeonggang Lava Plateau on the Chugaryeong tectonic valley is one of the most extensive volcanic areas in central Korea. However, formative age and process of the plateau still remains a controversial issue. This study presented OSL ages on the upper and lower sedimentary layers of basalt from four sites in the Cheolwon and Yeoncheon areas and estimated age and process of plateau formation based on sedimentary- and chrono-stratigraphy and topographic analysis. The results suggested that most of the initial topography of the plateau on the Cheolwon and Yeoncheon areas had been almost completed before approximately 90 ka. However, the last lava flow around Jangheung-ri, Cheolwon, seemed to occur until 20-30 ka and had led to complete the present plateau, while the last lava flow in the Jeongok area, Yeoncheon, was estimated to occur at approximately 40 ka.