• Food Engineering Progress
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• v.15 no.3
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• pp.209-213
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• 2011

Changes of rancidity of soybean powder from Yeonhaeju (Bazaz) during storage were evaluated by TBA, and compared with those of Korean soybean (Baektae). Lipoxygenase (LOX) in the soybean powder was inactivated by high pressure processing (HPP) to increase the stability of soybean powder during storage. The level of inactivation of LOX was measured by spectrophotometer at 234 nm. HPP decreased the activity of LOX in the soybean powder of Baektae, compared to that of the control (i.e., soybean powder without HPP treatment) of Baektae, while TBA values of both HPP treated Baektae and the control were increased up to 24 days of storage. However, in case of Bazas, both LOX activity TBA values decreased after HPP treatment, compared to those of controls. The antioxidant compounds in both soybeans were measured and quantitatively evaluated by on-line $ABTS^{+}$ assay. Based on the trolox equivalent (TE) value at the retention time 38.2 and 40.1 min, the antioxidant components in Bazaz were higher than that of Baektae. It might indicate that relatively lower TBA values of HPP treated Bazaz was due to lower LOX activity as well as higher antioxidant compounds in the species.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.93-101
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• 2019

This study was conducted to develop a simulation-based education program for respiratory infectious disease and to identify the effects of clinical competency, self-leadership and critical thinking after applying to nursing students. A non-equivalent pre-post test of quasi-experimental design was used. The study subjects were 30 students for the experimental group and 30 for the control group. Respiratory infectious disease simulation-based education was provided for 5 weeks. Data analysis was performed using SPSS WIN Ver 21.0 with Fisher's exact test, independent t-test, and paired t-test. Clinical competency, self-leadership, and critical thinking of the experimental group showed statistically significant differences in comparison with the control group. These study results proved that a simulation-based education program for respiratory infectious disease is effective in raising nursing students' clinical competency, self-leadership and critical thinking. Therefore, it is considered that simulation-based education should be provided to cultivate nursing problem-solving clinical competency, self-leadership or critical thinking by developing a scenario based on various clinical situations.

• Journal of Convergence for Information Technology
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• v.9 no.3
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• pp.56-67
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• 2019

The aim of this study was to investigate the influence of rosemary oil inhalation on memory, attention and autonomic nervous system according to the concentration difference in the aged. The research design was non-equivalent control group non-synchronized design. Participants were 89 individuals aged 65 or older who live in the community. Participants inhaled almond carrier oil(control group), 10%(experimental group A) and 100%(experimental group B) rosemary oil. Memory, attention, and autonomic nervous system responses were measured. Data were analyzed by SPSS win 24.0. The differences of the group and time were analyzed through repeated measure ANOVA. There were no significant differences in immediate recall (F=.42, p =.656), delayed recall (F=.45, p=.639), recognition (F=1.45, p=.242), digit span-forward (F=1.53, p=.223), digit span-backward (F=.46, p=.636), activities of sympathetic nerve system (LF)(F=.19, p=.828), activities of parasympathetic nerve system (HF)(F=.37, p=.694), LH/HF(F=1.39, p=.256), systolic blood pressure (F=.37, p=.694), diastolic blood pressure (F=1.25, p=.291). The inhalation of 10% and 100% rosemary oil for five minutes showed no significant effects on memory, attention and automatic nervous system in the aged.

• Toxicological Research
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• v.35 no.3
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• pp.241-248
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• 2019

Pesticide exposure may induce biochemical alterations including oxidative stress and lipid peroxidation. However, in the context of developmental origin of health and disease, putative trans-generational effect of exposure to pesticides are insufficiently studied. We therefore aimed to evaluate the biochemical effect of gestational exposure to four pesticides on female Wistar rats and their offspring at adult age. We studied 30 female nulliparous Wistar rats divided into 5 equal groups. Group 1 served as the control group and received distilled water while group 2, 3, 4 and 5 received orally pesticide 1 (imidacloprid), pesticide 2 (chlorpyrifos), pesticide 3 (imidacloprid + lambda cyhalothrin) and pesticide 4 (oxamyl) respectively once daily throughout gestation at a dose equivalent to 1/10 lethal dose 50. The mothers were followed up until one month post gestation. The offspring were followed up from birth until adult age (12 weeks). In all animals at each time point we evaluated malondialdehyde (MDA), oxidative stress and liver function enzymes. There was similar variation of total body weight in all the groups during and after gestation. However, Female Wistar rats of the exposed groups had significant alterations in liver SOD (-30.8% to +64.1%), catalase (-38.8% to -85.7%) and GSH (-29.2% to -86.5%) and; kidney catalase (> 100%), GSH (> 100%). Moreover, MDA, alanine transaminase (ALT) and aspartate transaminase (AST) levels were significantly higher in pesticide exposed rats compared to the control group. Similar alterations in antioxidant enzymes, MDA and liver function enzymes were observed in offspring of treated rats evidenced at weaning and persisting until adult age. Exposure to pesticides causes oxidative stress and lipid peroxidation in exposed female Wistar rats and their offspring. The persistence in offspring at adult age suggests transgenerational adverse effects.

• Journal of Plant Biotechnology
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• v.48 no.2
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• pp.77-85
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• 2021

Hydroponic cultivation, in which crops are grown without soil and are unaffected by the weather, has many advantages over conventional soil cultivation. The crop's growth can be further accelerated by using nutrient solution in place of water. This study investigated the growth and physicochemical properties of hydroponic barley sprouts under various nutrient solution and artificial light treatments. The shoot, root, and total plant length increased over time, with the fastest growth occurring in the nutrient solution and light-emitting diode (LED) treatments. Fresh and dry plant weights were higher in the fluorescent lamp treatment than in the LED treatment. Barley sprout powder color differed slightly by treatment, with the Hunters L value ranging from 50.79 to 53.77; Hunters a value from -6.70 to -4.42; and Hunters b value from 13.35 to 14.76. The Hunters L and Hunters b values were highest in the LED treatment, whereas the Hunters a value was relatively highest in the fluorescent lamp treatment. The total phenol content was higher in the control than in the nutrient solution treatment; however, the total flavonoid content showed the opposite pattern to that of total phenol content, being highest in plants that were grown in nutrient solution. The Trolox equivalent antioxidant capacity (TEAC) was higher in the control group than in the nutrient solution group. The ferric ion reducing antioxidant power (FRAP) was higher in the fluorescent treatment group than in the LED treatment group. The total amino acid composition ranged from 106.82 to 122.63 mg/g dry powder, with the essential amino acid composition ranging from 47.01 to 56.19 mg/g, and non-essential amino acid composition from 67.86 to 77.66 mg/g. The most frequently detected compositional amino acid was aspartic acid, followed by glutamic acid, alanine, leucine, and valine.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.399-408
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• 2021

The purpose of this study was to determine the effects of simulation-based practice and clinical practice on nursing students' critical thinking disposition and nursing process confidence. This study is a quasi-experimental design using the non-equivalent control group pretest-posttest only design, targeting 103, 4th grade(51=control group, 52=experimental group) in the Department of Nursing at D University. The collected data were analyzed using the SPSS/WIN 23.0 program, and the main research results are as follows. Students who experienced simulation-based practice showed significant improvement in critical thinking tendencies(t=-3.28, p=.001) compared to those who experienced clinical practice. There was no significant difference in nursing process confidence (t=-1.78, p=.079), but it was significantly higher in actual application, collaborative contsistency, and nursing contsistency. As a result, There were no significant difference in some, but it was contfirmed that simulation-based practice improved the critical thinking disposition and nursing process confidence in of nursing students. In addition to clinical practice, it is considered necessary to study simulation-based practice using repetitive practice and standardized patients in a free simulation practice environment.

• Animal Bioscience
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• v.35 no.7
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• pp.999-1009
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• 2022

Objective: To improve the feeding value of rice straw (RS), this study evaluated the potential of rice straw fermented with Pleurotus sajor-caju (FRS) as dairy goat feed. Methods: Spent Pleurotus sajor-caju mushroom substrate was used as fungi inoculum to break the lignocellulose linkage of rice straw, which was solid-fermented at 25℃ to 30℃ for 8 weeks. The ruminal degradation of pangolagrass hay (PG), FRS, and RS were measured in situ for 96 hours in three dry Holstein cows, respectively. Effect of fungi fermented RS on milking performance was studied in feeding trials. A total of 21 Alpine goats a trial were divided into 3 groups: a control group in which PG accounted for 15% of the diet dry matter, and FRS or RS was used to replace the PG in the control group. Goats were fed twice a day under two 28-day trial in individual pens. Meanwhile, a 3×3 Latin square trial (14 days/period) was conducted to study the rumen digestion of three diets by using three fistulated dry goats. Rumen contents were collected for metabolite analyses every one to three hours on the last two days. Results: In situ study showed that fermentation could elevate the rumen degradable fraction and effective degradability of RS (p<0.05). Effective degradability of FRS dry matter was significantly increased from 29.5% of RS to 41.7%. Lactating trial results showed that dry matter intake and milk yield in the PG group and FRS group were similar and higher than those in RS group (p<0.05). The concentration of propionic acid and total volatile fatty acid in the RS group tended to be lower than those in PG group (p<0.10). There were no differences in rumen pH value and ammonia nitrogen level among the groups tested. Conclusion: Fermentation of rice straw by spent Pleurotus sajor-caju mushroom substrate could substantially enhance its feeding value to be equivalent to PG as an effective fiber source for dairy goat. The fermented rice straw is recommended to account for 15% in diet dry matter.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.15-23
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• 2022

This study is a non-equivalent control group quasi-experimental design to test the effectiveness of educational programs on human tissue donation for nursing students to change the perception of human tissue donation. The subjects of the study were 75 nursing students located in U city, 38 in the experimental group and 37 in the control group. The data were analyzed using SPSS/WIN 23.0. The average age was 22.39±0.75 years old, women 84.2% and there was no difference in general characteristics and prior data between the two groups. Knowledge (F=-8.921, p<).001, Attitude (F=-5.414, p<).001, perception of death (F=-3.075, p=).004) showed a significant difference, and the educational intervention of nursing students developed to promote human tissue donation showed a positive effect on human tissue donation. When programs to be applied to educational institutions that train not only medical personnel but also experts in other fields must be developed, the establishment and stability of the human tissue donation culture will be solidified. It is also suggested that health care campaigns and education in public educational institutions should be conducted together.

• 한국노년학
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• v.32 no.2
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• pp.377-395
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• 2012

This study was conducted to develop and evaluate the effectiveness of Multifactorial Fall Prevention Program (MFPP) for local low-income elderly people on physical·psychological, and home environmental hazards, and falling frequency. The selected elderly people was provided the MFPP during an eight-week period of time, once a week, 70 to 90 minutes per each section. The design of this study was non-equivalent control-group with repeated measuring by quasi-experimental study. Data were collected before treatment, 8 week after treatment and 4 week after retention from July to October, 2010. Data were analyzed with numbers, percentage, Fisher's exact test, x²-test, repeated measures ANOVA, ANCOVA and Logistic regression. There were significant differences in fall frequency, balance, fear of falling, fall efficacy, home environmental hazards between the experimental group (EG) and control group (CG). This study showed that the multifactorial fall prevention program(MFPP) was useful nursing intervention for strengthening physical·psychological and environmental functions of the low-income elderly people, as well as preventing fall.

• Journal of Practical Agriculture & Fisheries Research
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• v.25 no.4
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• pp.60-66
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• 2024

This study was undertaken to evaluate the effect of feeding with fiber diets on growth performance in weaned piglets. A total of 240 pigs with an averge weight of 8.69±0.45 kg at 28±2 days of age were allocated into a randomized complete block design (RCBD) with a total of 6 treatments and 5 replications per treatment in the pig barn. The experimental treatments were as follows: 1) Negative control (NC: Basal diet), 2) Positive control (PC: Basal diet+antibiotic), 3) SBP2 (Basal diet+2% sugar beet pulp addition), 4) SBP8 (Basal diet+8%diet+8% sugar beet pulp addition), 5) OH2 (Basal diet+2% sugar beet pulp), and 6) OH8 (Basal diet+8% oat hull addition). The pigs were fed phase I diets for 2 weeks and phase II diets for 3 weeks, with the average daily gain (ADG) and average daily feed intake (ADFI) measured on days 14 and 35. During 2 week the growth performance of the PC treatment, with 0.1% antibiotic addition, showed a significant increase (P<0.05). In 0~5 weeks, the growth performance in the PC treatment was the highest. Treatments with dietary fiber additions exhibited lower daily gains compared to the PC treatment but were higher than the NC treatment. SBP8, with 8% sugar beet pulp addition, showed growth performance comparable to the PC treatment (P<0.05). Additionally, the 8% fiber addition level demonstrated significantly higher daily gains compared to the 2% addition level (P<0.05). The addition of fiber to pig diets resulted in lower growth performance compared to treatments with antibiotic additions. However, the pigs fed SBP8 showed growth performance equivalent to those in the PC treatment, suggesting the potential of sugar beet pulp as a substitute for antibiotics in pig feed. The growth attributed to sugar beet pulp addition in the feed is speculated to occur while the immature gut of the pigs is developing and due to the positive influence of sugar beet pulp's fiber source on the gut environment.