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The Effects of Clinical Practice Stress, Grit and Self-Efficacy on Clinical Competency in Nursing Students (간호대학생의 임상실습 스트레스, 그릿, 자기효능감이 임상 수행 능력에 미치는 영향)

  • Kim, Young-Sook
    • The Journal of the Korea Contents Association
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    • v.22 no.9
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    • pp.451-460
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    • 2022
  • This study was conducted to understand the correlation between clinical practice stress, grit, self-efficacy, and clinical performance of nursing students and to identify factors affecting clinical performance. A survey was conducted on 160 students in 3rd and 4th grade students enrolled in a nursing department located in G city. As a result of the study, clinical performance was negatively correlated with clinical practice stress(r=-.383, p< .001) and positively correlated with grit(r=.310, p< .001), self-efficacy (r=.327, p< .001). Factors affecting the clinical performance of nursing students were clinical practice stress(β=-.37, p<.001), clinical practice satisfaction (β=.35, p< .001), self-efficacy (β=.31, p< .001), grit (β=.28, p< .001) and the explanatory power was 42.8%. Based on the results of this study, in order to improve the clinical performance of nursing students, it is necessary to reduce the clinical practice stress and make them satisfied with the clinical practice. In addition, it is necessary to develop a program to improve self-efficacy and grit

Isolation of Antagonostic Fungi to Phytophthora Capsici for Biological Control of Phytophthora Blight of Red-Pepper (고추역병의 생물학적 방제를 위한 길항진균의 분리)

  • 이용세;전하준;김상달
    • Korean Journal of Organic Agriculture
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    • v.6 no.2
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    • pp.117-125
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    • 1998
  • For isolation of antagonistic fungi antagonistic to Phytophthora capsici, a total of 157 isolates of fungi were screened from soil. Among the 157 isolates further screened by the dual culture test on potato dextrose agar and V-8 juice agar, 16 isolates were tested to show their antagonistic activity against P. capsici and Fusarium oxysporum. Fungal cul-ture filtrates of screened 16 isolates were shown to inhibit germination of zoospoorangia of P. capsici entirely and conidia of F. oxysporum considerably. Antagonistic fungi were shown to suppress of P. capsici infection of red-pepper plants maintained in the green house. Four isolates. 27 J5, 37 J10, 36 J13 and 31 K10, with the reduced disease incidence 53.3∼60.0% were identified as Fusarium sp. (27 J5). Trichoderma sp. (37 J10, 36 J13) and Penicillium sp. (31 K10).

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Induction of Lactococcal /beta-Galactosidase in E. coli (E. coli에서 탄수화물원에 따른 Lactococcal /beta-galactosidase의 발현)

  • 류현주;장지윤;이형주;김정환;정대균;이종훈;장해춘
    • Microbiology and Biotechnology Letters
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    • v.27 no.3
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    • pp.260-265
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    • 1999
  • The structural $\beta$-galactosidase gene (lacZ) from Lactococcus lactis ssp. lactis 7962 was cloned into plamid vector pKF18, which was designated as pKF-gal. Expression of the lacZ from L. lactis 7962 was found to be higher when cells were grown at 3$0^{\circ}C$ than 37$^{\circ}C$. Maximum $\beta$-galactosidase activity was obtained when E. coli/pKF-gal was cultivated for 6hr at 3$0^{\circ}C$ and for 3hr at 37$^{\circ}C$, and L. lactis 7962 was grown for 8hr at 3$0^{\circ}C$. Enzyme induction was achieved by the addition of lactose, galactose, or lactose+IPTG to growing culture. The addition of glucose had no effect on enzyme induction.

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A CHARACTERIZATION OF ELLIPTIC HYPERBOLOIDS

  • Kim, Dong-Soo;Son, Booseon
    • Honam Mathematical Journal
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    • v.35 no.1
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    • pp.37-49
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    • 2013
  • Consider a non-degenerate open convex cone C with vertex the origin in the $n$2-dimensional Euclidean space $E^n$. We study volume properties of strictly convex hypersurfaces in the cone C. As a result, for example, if the volume of the region of an elliptic cone C cut off by the tangent hyperplane P of M at $p$ is independent of the point $p{\in}M$, then it is shown that the hypersurface M is part of an elliptic hyperboloid.

Effect of Black Rice Powder on the Quality Properties of Pork Patties

  • Park, Sin-Young;Lee, Jong-Wan;Kim, Gye-Woong;Kim, Hack-Youn
    • Food Science of Animal Resources
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    • v.37 no.1
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    • pp.71-78
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    • 2017
  • Physicochemical properties of pork patties formulated with black rice powder were investigated. Moisture contents of samples containing black rice powder were significantly higher than that of the control (p<0.05). Protein, fat, and ash contents increased with increasing black rice powder content. Uncooked and cooked pH values of samples increased with increasing black rice powder content. Lightness and yellowness of samples decreased with increasing concentration of black rice powder. Redness of cooked samples containing black rice powder was significantly lower than that of the control (p<0.05). Water holding capacity and cooking yield of samples increased with increasing black rice powder concentration. Diameter and thickness reduction ratio of samples decreased with increasing black rice powder content. Sensory evaluation of samples showed no significant difference between samples. Thus, black rice powder improved the quality of pork patties.

Kinetic Studies of Aspartase from Hafnia alvei byTemperature Dependence Activity Changes

  • Yun, Mun Yeong
    • Bulletin of the Korean Chemical Society
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    • v.21 no.4
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    • pp.379-382
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    • 2000
  • The temperature dependence of the kinetic parameters of the aspartase-catalyzed reaction has been examined in the direction of deamination. The pK1values at 37$^{\circ}C$, 25$^{\circ}C$, 16$^{\circ}C$ and 7$^{\circ}C$ were 6.2 $\pm$ 0.1, 6.3 $\pm$ 0.1, $6.7{\pm}0.3$ and 6.9 $\pm$ 0.3, respectively. On the other hand, the pK2 values at 37$^{\circ}C$,25$^{\circ}C$, 16$^{\circ}C$ and 7$^{\circ}C$ were 8.1 $\pm0.2$, 8.3 $\pm$ 0.2, 8.2 $\pm$ 0.3 and 8.0 $\pm$ 0.2,respectively. The enthalpy of ionization, DHion, calculated from the slope of pK1, are 6.0 $\pm$ 0.3 kcal/mol. These results validate the prediction that aspartase requires a histidine residue for a general base, and a cysteine (or having a carboxyl functional group) for a general acid.

Nationwide Cross-sectional Analysis of Determinant Agents for Sarcopenia in Men in Their Forties: Based on the E WGSOP Criteria

  • Jongseok Hwang
    • Journal of the Korean Society of Physical Medicine
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    • v.19 no.3
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    • pp.37-46
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    • 2024
  • PURPOSE: This study examined sarcopenia in middle-aged men aged 40 to 49 years. METHODS: The study design was a nationwide cross-sectional study involving 1,564 participants. The participants were divided into two groups based on their skeletal muscle mass index scores, with 36 and 1,528 individuals classified into the sarcopenia and normal groups, respectively. The variables examined included age, height, weight, body mass index (BMI), waist circumference, skeletal muscle mass index, and systolic and diastolic blood pressure. The results from blood tests included fasting glucose, triglycerides, and total cholesterol levels. The smoking and drinking status were also recorded. RESULTS: The anthropometric variables, such as weight, BMI, and waist circumference, revealed significant differences between the two groups (p < .05), except for height (p > .05). In addition, total cholesterol in the laboratory test and drink status were significant between the two groups (p < .05). CONCLUSION: This study identified significant determinants for sarcopenia among community-dwelling middle-aged men.

Enhancement of Soluble Expression of CGTase in E. coli By Chaperone Molecules and Low Temperature Cultivation. (대장균에서 chaperons 분자와 저온배양에 의한 CGTase의 가용성 발현 증대)

  • 박소림;김성구;권미정;남수완
    • Journal of Life Science
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    • v.14 no.1
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    • pp.121-125
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    • 2004
  • The synergistic effect of lowered incubation temperature and CroEL/ES expression on the production of soluble form of B. macerans cyclodextrin glucanotransferase (CGTase) was studied in recombinant E. coli. pTCGTl and pGroll carrying the cgt and groEL/ES genes under the control of T7 promoter and pzt-I promoter, respectively, were co-introduced. Tetracycline (10 ng/ml) and IPTG (1 mM) were added at the early-exponential phase (2 hr) and mid-exponential phase (3 hr). Low temperature cultivation at $25^{\circ}C$ with groEL/ES expression improved the activity of CGTase by two fold, compared to $37^{\circ}C$ cultivation without chaperones. SDS-PACE analysis revealed that about 69% of CGTase in the total CGTase protein was found in the soluble fraction by overexpression of GroEL/ES and cultivation at$25^{\circ}C$, whereas 20% of CGTase was detected in the soluble fraction when E. coli was cultivated at $37^{\circ}C$ without chaperone. The amount of soluble CGTase from $25^{\circ}C$ culture with chaperone was 3.5-fold higher than that of $37^{\circ}C$ culture without chaperone. Therefore the expression of CroEL/ES and low temperature cultivation greatly enhanced the soluble production of CGTase in E. coli.

Effect of Replacing Wheat or Maize with Micronized Barley on Starter, Grower and Finisher Pig Performance

  • Yin, Y.-L.;Baidoo, S.-K.;Boychuk, L.-L.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.5
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    • pp.668-676
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    • 2001
  • Two growth performance experiments were undertaken in order to compare the nutritional benefit of micronized dehulled barley (MDB) with wheat and maize. In the first experiment, ninety-six 24 d old Cotswold pigs with an average body weight of 9.5 kg were randomly allotted into one of four dietary treatments. The wheat and MDB ratio in the four complex diets were 100% wheat, 75% wheat+25% MDB, 50% wheat+50% MDB and 100% MDB; cereal was about 47% of the whole diet and varied by using different ratios of wheat and MDB. Starter phase was started at a bodyweight 9.9 kg; grower phase continued at liveweight 37.1 kg and finished at 74.0 kg. The ADFI, ADG and feed efficiency (F/G) were not affected (p>0.05) by the level of MDB in the diet from 9.9 to 37.1 kg live weight. However, ADFI was (p<0.05) less (14%) for the pigs fed the 75 or 100% of MDB based diets without affecting F/G during the second phase (37.1 to 74.0 kg live weight). Pigs fed the MDB based diet had a lower (p<0.05) plasma urea nitrogen (PUN) concentration than the pigs fed the wheat-based diet. In the second experiment, the trial started at 9.9 kg body weight and ended at market weight (107.6 kg), with three different phases in the trial. One hundred and twenty Cotswold pigs were randomly assigned to one of three dietary treatments. The maize and MDB ratio in the three diets were 100% maize, 50% maize+50% MDB and 100% MDB. Diet treatments did not affect (p>0.05) growth performance, PUN level, carcass characteristics and organ size, except for an improvement (p<0.05) in ADG for the pigs in the starter phase fed 50% and 100% MDB based diets.

Conditions for the Pigment Production by Bacillus sp. CS-17 and Antibacterial Activity of Pigment Concentrated Extracts (Bacillus sp. CS-17의 색소 생성조건 및 색소 농축액의 항균특성)

  • Son, Dong-Hwa;Kwon, Oh-Jin;Choi, Ung-Kyu;Chung, Yung-Gun
    • Applied Biological Chemistry
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    • v.41 no.3
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    • pp.213-218
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    • 1998
  • A bacterium with potent activity of pigment production and protease was isolated and identified as being Bacillus sp. CS-17. Cell growth, protease activity and pigment production of the strain reached to its maximum point after 24 hrs, 48 hrs, 72 hrs, respectively. The best pigment producing ability of Bacillus sp. CS-17 was shown on basal medium for pigment production added 1.0% soybean. The high effcient conditions for pigment production was obtained at culture of pH 8.5, $37^{\circ}C$ and 72 hours. Among the tested 5 gram positive strains and 6 gram negative strains, weak antibacterial activity of pigment concentrated extracts was appeared against growth of B. subtilis, P. aeruginosa, S. typhimurium, E. aerogenes, B. cereus, A. hydrophila.

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