• Journal of Forest and Environmental Science
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• v.40 no.2
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• pp.111-117
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• 2024

An evaluation was carried out on variability in morphology of fruits and seeds (number and weight) of Tetrapleura tetraptera (Schumach. and Thonn.) Taub. from different populations across its distribution range in Nigeria. Bulk fruit samples were collected and examined for variations in morphological characters. Differences in morphological character of fruits and seeds among the populations were determined using analysis of variance at 5% level of probability. The relationships among morphological characters were determined using Pearson correlation coefficient (r). Significant variations (p<0.05) existed among T. tetraptera populations for all the evaluated characters: fruit length, fruit width, number of seeds per fruit and seed weight. A positive significant strong correlation (r=0.96) was found between seed weight and number of seeds per fruit, while no correlation existed between fruit length, width and number of seeds. Seed weight was positively correlated with minimum altitude (r=0.97) and maximum altitude (r=0.99) of seed populations. Number of seeds was also significantly correlated with maximum altitude (r=0.965). There was no significant correlation between geo-climatic variables and fruit dimensions (length and width). Observed variations in morphological traits within and across populations of T. tetraptera may be used as proxy to estimate genetic diversity and selection of superior trees for improved productivity.

• Journal of the Korean Dietetic Association
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• v.11 no.2
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• pp.233-241
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• 2005

The purpose of the study was to evaluate the perception of importance about prerequisite program(PRP) of dietitians. A questionnaire was developed to achieve research objectives and sent to random samples of 450 dietitians by a mail from July to August in 2000 ; 242(54%) responses were analyzed. The respondents used three-point-scale to rate their perception of importance about PRP from 1-"will be necessary" to 3-"very important". All statistical analyses were conducted using SAS package(version 8.12) in order to have means, standard deviations, One-way analysis of variance, Duncan’s multiple range test and t-test. The study results were summarized as follows. The rates of perception of importance about PRP were significantly different from 21 of the 37 contents among business and industry, health care and school foodservice and were significantly different from 16 of the 37 contents among direct and contract management(p<.05 or p<.01 or p<.001). Dietitians in business and industry had lowest perception of importance about PRP of other respondents. Generally, the item related to ‘‘employee hygiene practice’ had the highest perception level score among PRP in foodservice facilities. Results indicate that there is a need for increased education of dietitians about PRP and appropriate practices.

• Asian-Australasian Journal of Animal Sciences
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• v.13 no.1
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• pp.6-9
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• 2000

The purpose of this study was to evaluate the effect of lower numbers of sperm $(3{\times}10^9)$ per dose liquid semen and type of semen used in artificial insemination (AI) on sow reproductive performance in subtropical area. Semen was supplied by two commercial AI centers. A total of 671 female pigs from seven farms were inseminated with either $3{\times}10^9$ or $5{\times}10^9$ sperm per dose. Two types of semen were used: heterospermic semen from two boars of the same breed and homospermic semen from a single boar. After insemination, conception rate, farrowing rate, total litter size, and number of dead piglets were recorded. The analysis of variance indicated that there was no significant effect of interactions between pig farm, type of semen, or number of sperm on any of the traits measured. There were significant differences in conception rate, farrowing rate, and total litter size among pig farms (p<0.05). The effect of number of sperm per dose liquid semen ($3{\times}10^9$ or $5{\times}10^9$) was not significant. Sows inseminated with homospermic semen showed significantly higher conception and farrowing rates but significantly lower total litter size (p<0.05). In conclusion, the number of sperm per dose liquid semen for AI could be lowered to $3{\times}10^9 $ without affecting reproductive performance in subtropical areas like Taiwan.

• The Journal of Korean Academic Society of Nursing Education
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• v.19 no.3
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• pp.330-340
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• 2013

Purpose: This study was performed to identify the level of Korean elderly's knowledge regarding concepts of end-of-life (EOL), Life-sustaining-treatment (LST), and advance directives (AD) which are critical aspects for establishing AD in Korean society. Methods: A questionnaire survey was done between October 2011 and February 2012. Knowledge of AD was evaluated with 3 aspects including EOL, LST, and AD utilizing a questionnaire that was developed by authors for the study. Data were collected from 268 community dwelling elderly from three cities and analyzed using descriptive statistics, t-tests, one-way analysis of variance, and a Scheffe post hoc test with SAS Ver. 9.1 program. Results: Overall, Korean elderly were poorly acquainted with AD related concepts. Significant differences in awareness of AD including understanding of EOL, the level of comprehension of LST, and knowledge about AD were revealed by gender, education level, economic state, and acquaintance with terms of AD or LST. Conclusion: To acknowledge autonomy and support quality of life for elderly and to meet the purpose of AD, attention should be given to target populations including elderly in terms of knowledge level related to AD, social marketing, and infra structure relevant to practice AD in our society.

• Journal of the Korean Dietetic Association
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• v.11 no.1
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• pp.105-113
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• 2005

The purpose of the study was to evaluate the perception of importance about HACCP guidelines of dietitians. A questionnaire was developed to achieve research objectives and sent to random samples of 500 dietitians by a mail ; 418(84%) responses were analyzed. The respondents used three-point-scale to rate their perception of importance about HACCP from 1-"will be necessary" to 3-"very important". All statistical analyses were conducted using SAS package(version 8.12) for Windows. Means and standard deviations were computed for all variables. One-way analysis of variance and Duncan's multiple range test were used to assess differences in the perception of importance about HACCP guidelines among business and industry, health care and school foodservice managers. The study results were summarized as follows. Dietitians especially had lower perception of importance on the contents of Critical Control Points(CCPs), such as; adequate thawing methods and keeping records(1.95) and correct cleaning and sterilizing for raw vegetables and fruits(1.93). The rates of perception of importance about HACCP guidelines were significantly different from 19 of the 37 contents among business and industry, health care and school foodservice(p<.05 or p<.01 or p<.001). Generally, the item related to purchasing and inspection management had the highest perception level score and the item related to pre-preparation management had the lowest perception level score in foodservice production process(p<.001). Results indicate that there is a need for increased education of dietitians about HACCP principles and appropriate practices.

• Korean Journal of Health Education and Promotion
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• v.4 no.2
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• pp.9-31
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• 1987

This study was conducted because of the investigator's concern for the high incidence and fatal nature of cancer in prime years of human life. The purpose of this study was to investigate risk factors on compilance for preventive health behavior of cancer. The data on which the analysis was based come from a survey of 828 married men & women, 40-59 years old. The instrument of the study were 'Health Belief Model' by Becker. The Data was analyzed using X--test, t-test, ANOVA, Pearson's Correlation Coefficient, Stepwise Multiple Regression. The followings were the result; 1. The examined group had a higher scores than the non-examined group in health belief variables. (p<0.001) 2. The higher level of health belief variables, the higher level of compliance for preventive health behavior is. (p<0.001) 3. The Stepwise Multiple Regression of compliance for preventive health behavior on the variables in the health belief model; Approximataly 65.5% of the variance of compliance for preventive health behavior was accounted for by health concern, susceptibility and barriers in combination. This meant that other factors seemed to influence preventive health behavior since the linear combination of variables failed to explain the remaining 34.5% of preventive health behavior of cancer. It tended to cost doubt on the usefulness of 5 variables in this model. Therefore further study to investigate the influential factors preventive health behavior of cancer is necessary.

• Journal of Korean society of Dental Hygiene
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• v.20 no.1
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• pp.73-83
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• 2020

Objectives: This study aimed to measure the knowledge of dental hygienists regarding dental waste, and identify the relationship between general characteristics and infection control characteristics. Methods: This study was conducted using a self-reported questionnaire in 250 dental hygienists. The questionnaire consisted of 21 items: storage container (5 items), storage locations (5 items), storage period (9 items), and storage method (3 items). The collected data were analyzed using the t-test and analysis of variance. Results: The education experience of infection management within the last year was reviewed for significant differences among dental hygienists regarding storage container and storage periods (p<0.05). Statistically significant differences were observed regarding the knowledge of storage container, storage locations, storage period, and storage method among the enrolled dental hygienists (p<0.05). Conclusions: This study examined the necessity of developing conservative education and job education programs to improve the knowledge level of dental hygienists regarding dental waste management.

• Journal of Korean society of Dental Hygiene
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• v.19 no.6
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• pp.1089-1097
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• 2019

Objectives: The purpose of this study is to assess the accuracy of provisional restorative resins fabricated using dental three-dimensional (3D) printers. Methods: Provisional restorative resins were fabricated using the first molar of the right mandibular. Three groups comprising a total of 24 samples of such resins were fabricated. The prepared abutment was scanned initially and then designed using a computer-aided design (CAD) software. The conventional subtractive manufacturing system was employed to fabricate the first group of resins, while the second and third groups were fabricated using a digital light processing (DLP) 3D printer and a stereolithography (SLA) 3D printer, respectively. The internal surfaces of the resins were scanned and 3D measurements of the resins were taken to confirm their accuracy. Results: The root-mean-square deviation (RMS±SD) of the accuracy of the resins fabricated using the conventional subtractive manufacturing system, DLP 3D printer, and SLA 3D printer were 68.83±2.22 ㎛, 74.63±6.23 ㎛, and 61.74±4.09 ㎛, respectively. A one-way analysis of variance (ANOVA) test showed significant differences between the three groups (p < 0.05). Conclusions: Provisional restorative resins fabricated using DLP and SLA 3D printers demonstrated clinically-acceptable results.

• Korean Journal of Applied Biomechanics
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• v.22 no.3
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• pp.341-348
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• 2012

The purpose of this study was to compare the muscle activities of the thoracic extensor(TE) and lumbar extensor(LE) during trunk lift (TL) exercise according to exercise position. Seventeen healthy subjects with no medial history of back pain were recruited for this study. Subjects performed the TL exercise in prone, quadruped and heel-sitting positions. The activities of the TE and LE were measured using surface electromyography during TL exercise in each exercise position. A one-way repeated-measures analysis of variance (ANOVA) was used to compare the normalized muscle activities of the TE and LE and the TE/LE ratio. The results showed that there was not significant effect of exercise position on the muscle activities of TE(p>.05). However, there was significant effect of exercise position on the muscle activities of LE and the TE/LE ratio(p>.05). Post hoc pair-wise comparisons with Bonferroni correction showed that both muscle activities of LE and TE/LE ratio in prone position were significantly different in those in heel-sitting and quadruped positions, during TL exercise, respectively. The TE/LE ratio was the greatest for TL exercise in heel-sitting position. Therefore, for selective activation of the TE muscle, we recommend performing the TL exercise in heel-sitting or quadruped position.

• Proceedings of the Korean Society of Applied Pharmacology
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• 1997.04a
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• pp.117-117
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• 1997

Sandimmune Neoral$\^$(R)/ and Neoplanta$\^$(R)/ capsules were administered to twenty four healthy Korean male subjects at a cyclosporin A (CsA) dose of 175 mg in a 2 ${\times}$ 2 crossover investigation with a two-week wash-out phase. Concentrations of CsA in blood were measured by RIA method for over a period of 48 h. Result : The two formulations were found bioequivalent, but analysis of variance (ANOVA) indicated that there is a significant (p<0.01) period effect in AUC$\_$0-LAST/ (area under the blood concentration above assay limit of quantification-time curve) and C$\_$MAX/ (maximum blood concentration) between the administrations. Paired t-test revealed 6 and 9% decreases in AUC$\_$0-LAST/ and C$\_$MAX/, respectively at the second administration. This period effect on the pharmacokinetics of CsA may be relevant for the patients who need consecutive administration of the drug. A number of mechanisms, such as induction of the enzymes responsible for metabolism of the drug in the gut wall and/or liver and modulation of P-glycoprotein upon the consecutive dosing, appear consistent with the change, and needs experimental proof.