• Title/Summary/Keyword: Correlated relationships

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Estimation of Correlation Coefficients between Histological Parameters and Carcass Traits of Pig Longissimus Dorsi Muscle

  • Ryu, Y.C.;Rhee, M.S.;Kim, B.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.3
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    • pp.428-433
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    • 2004
  • The aim of this study was to investigate the histochemical parameters of muscle fibers, and to estimate the correlation between these histological parameters and carcass traits in pigs. A total of 230 crossbred Duroc$\times$(Yorkshire$\times$Landrace) pigs (149 gilts and 81 castrated male pigs) was evaluated. Carcass traits (carcass weight, backfat thickness, and loin eye area), muscle fiber size (crosssectional area, diameter, and perimeter), muscle fiber number (density of fibers/$mm^2$ and total number of fibers), and fiber type composition (percentages of myofibers and relative areas of each fiber type) were evaluated. Mean cross-sectional area (CSA) and type IIB fiber CSA were positively correlated to carcass weight, backfat thickness and loin eye area. Mean fiber CSA was mostly related to type IIB CSA (r=0.98) as a result of the high percentage of type IIB fibers in the longissimus muscle. Correlations between fiber diameters and perimeters were also high, and showed similar results with CSA. Mean fiber density was negatively correlated to carcass weight (r=-0.24), backfat thickness (r=-0.18) and loin eye area (r=-0.27). To the contrary, total fiber number was positively correlated with carcass weight (r=0.27) and loin eye area (r=0.53). Carcass weight and loin eyZe area were not significantly related to muscle fiber composition. For backfat thickness, there was an opposition between type IIA percentage, which was positively related and type IIB percentage, which was negatively related. Fiber type composition of type I and IIA fibers were negatively correlated to that of type IIB fibers (r=-0.67 to -0.74). In the present study, carcass weight and loin eye area were positively correlated to CSA and negatively correlated to fiber density. But, these relationships were generally low. The fiber density was strongly affected by muscle fiber size and the total fiber number was affected either by CSA of muscle fiber and loin eye area. Fiber type composition was much more related to their numerical abundance than their CSA.

Relationships of Muscle Fiber Characteristics to Dietary Energy Density, Slaughter Weight, and Muscle Quality Traits in Finishing Pigs

  • Jeong, Jin-Yeon;Kim, Gap-Don;Ha, Duck-Min;Park, Man-Jong;Park, Byung-Chul;Joo, Seon-Tea;Lee, C.-Young
    • Journal of Animal Science and Technology
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    • v.54 no.3
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    • pp.175-183
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    • 2012
  • The present study was conducted to investigate the relationships of muscle fiber characteristics to dietary energy density [3.0(Low-E) vs. 3.2 (Med-E) Mcal DE/kg)] and slaughter weight [SW; 110, 125, and 138 kg] in finishing pigs (gilt vs. barrow) using a $2{\times}3{\times}2$ factorial treatment design. Forty-one longissimus dorsi muscle (LM) samples were analyzed histochemically, with growth performance and physicochemical data for the 41 animals and their LM out of 192 animals and 72 LM used in a previous study retrospectively included. The ADG was less (P<0.01) in the Low-E than in the Med-E group (0.93 vs. 0.73 kg) whereas lightness ($L^*$) and redness ($a^*$) of LM were greater in the Low-E group SW did not influence these variables. The diameter and perimeter of the type I (slow-oxidative), type IIA (fast oxido-glycolytic) and type IIB (fast glycolytic) fibers increased with increasing SW whereas densities of the fibers decreased. However, the number and area percentages of the fiber types were not influenced by SW or dietary energy density. The percentage and per-$mm^2$ density of type IIB fibers were negatively correlated with SW (r = -0.33 and -0.57, with P<0.05 and <0.01, respectively), whereas type I fiber number percentage was positively correlated with SW (r = 0.31; P<0.05). Marbling score was negatively correlated (P<0.05) with type I (r = -0.36) and type IIB (r = -0.39) fiber densities. The $a^*$ was correlated (P<0.01) with both type I and type IIB fiber number percentages in the opposite way (r = 0.42 and -0.47, respectively). However, $L^*$ (lightness), drip loss and $pH_{24h}$ were not correlated with the fiber number percentage or density of any fiber type. Collectively, results indicate that muscle fibers grow by hypertrophy during the late finishing period, but that fiber characteristics other than the size are not significantly influenced by dietary energy density or SW.

The Relationships of Myers-Briggs Type Indicator and Assertiveness Training to Assertiveness Behavior and Conflict Management Mode (간호대학생의 성격유형과 주장훈련이 주장행동, 갈등관리 양식에 미치는 영향)

  • Park, Jeong-Hee
    • Research in Community and Public Health Nursing
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    • v.13 no.3
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    • pp.556-565
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    • 2002
  • Due to the fact that nurses may deal with diverse populations in the work place, it is very important for then to maintain appropriate interpersonal relationships with clients. Nurses should maintain diverse types of relationships appropriately with patients with special needs and their families during crisis, other nursing colleagues and staff on the same team, clients in the school or work place as well as the community. In particular, a hospital is a society with a system and hierarchy, and the importance of interpersonal relationships is much more emphasized. In interpersonal relationships, it is very important for a person to communicate with others in an accurate manner, and when the communication is not achieved appropriately, the person may have troubles and experience distress and conflicts because of the inaccurate communication of thoughts. According to the findings of previous studies, nurses actually experience much distress in the work place because of the miscommunication that they have with others. The purpose of this study was to observe a correlation between Myers-Briggs Type Indicator and assertiveness behavior, and to exam the effects of assertiveness training on the assertiveness behavior and conflict management mode. The subjects of this study included 20 persons in the experimental group and 20 persons the in control group. Myers-Briggs Type Indicator was applied before the study. The assertiveness training group received six, 120 minutes sessions over a 3 week period. Pre-test on assertiveness behavior, Communication Conflict Inventory-General, Role Conflict Inventory- General, Conflict Management Mode was achieved for all the subjects prior to the training. Post-test was administered to all the subjects one week following the last session. The data were analyzed using SPSS PC program to obtain findings on mean. standard distribution, t-test, and Pearson correlation. The results are as follows: (1) Myers-Briggs Type Indicator Introvert/Extrovert was correlated to assertive behavior and avoid- response type conflict management mode. (2) The assertiveness training was correlated to assertiveness behavior, communication conflict degree, and avoid- response type conflict management mode. (3) The post-test scores between the training group and the control group were significantly different in assertiveness behavior and avoid-response type conflict management mode. It is suggested that more studies need to be done to differentiate the effects of Myers-Briggs Type Indicator and assertiveness training on assertiveness behavior and avoid-response type conflict management mode.

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The effect of Nunchi, Social self-efficacy on Interpersonal relationship in College student (대학생의 눈치, 자기효능감이 대인관계에 미치는 영향)

  • Shin-Young Ju;Tae-Hee Jang;Jung-Hee Park;Woo-Suk Han
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.3
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    • pp.305-312
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    • 2024
  • The purpose of this study was to examine the relationship between nunchi, social self-efficacy, and interpersonal relationships among college students and identify factors that influence interpersonal relationships and explore ways to form healthy interpersonal relationships. Data were collected using a structured questionnaire from 180 college students at three and four-year universities in City D from October 1 to October 29, 2023. Interpersonal relationships were significantly and definitively correlated with nunchi (r=.645, p<.001) and social self-efficacy (r=.465, p<.001). The interpersonal relationship influence factor was, nunchi (β=.566. p<.001) and social self-efficacy (β=.211, p=.001), with an explanatory power of 46%. Therefore, the formation of healthy interpersonal relationships among college students, it is necessary to explore various ways to increase the level of awareness and social self-efficacy of college students, and to conduct various studies on the variables that increase the level of awareness and social self-efficacy so that they can act positively in interpersonal relationships.

Exploiting a Statistical Threshold for Efficiently Identifying Correlated Pairs

  • Kim, Myoung-Ju;Park, Hee-Chang
    • Journal of the Korean Data and Information Science Society
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    • v.19 no.2
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    • pp.551-558
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    • 2008
  • Association rule mining searches for interesting relationships among items in a given database. Association rules are frequently used by retail stores to assist in marketing, advertising, floor placement, and inventory control. There are three primary quality measures for association rule, support and confidence and lift. If there is many item in the association rule, much time is required. Xiong(2004) studies new method which is to compute the support of upper. They used support of upper to the $^{\theta}$. But $^{\theta}$ is subjective. In this paper, we present statistical objective criterion for efficiently identifying correlated pairs.

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A study of relationship among the Brain Dominance Thinking Types and Self Leadership of engineering students (공과대학생의 두뇌우성 사고유형과 셀프리더십과의 관계 연구)

  • Kim, Yeon-Hee;Sun, Bok-Keon
    • Journal of the Korea Safety Management & Science
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    • v.15 no.4
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    • pp.357-363
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    • 2013
  • The purpose of this study was to identity the relationships of sub factor among the brain dominance thinking types(A,B,C,D quadrant thinking type) is based on the Whole Brain Modal and self-leadership by Manz. The subjects were 102 undergraduates students from the Hoseo university in Cheonan. The results of this study as follows ; first, the brain dominance thinking type A was the highest and type C was highly rated. Second, the brain dominance thinking type A was not correlated type C and type D. Third, the brain dominance thinking type C and self-leadership sub factor was significantly positively correlated.

Correlational study on English learners' motivation, anxiety, WTC and their English achievement scores in native teachers' classes (원어민 영어수업에서 느끼는 학습동기, 불안감, 의사소통 의지와 영어성적과의 관계)

  • Nam, Jung-Mi
    • English Language & Literature Teaching
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    • v.17 no.2
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    • pp.139-160
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    • 2011
  • This study examines correlations between affective variables and English learners' achievement in native teachers' classes. Specifically, it aims to study the relationships among Korean college students' English learning motivation, anxiety, WTC (willingness to communicate) and their English achievement scores. For the purpose, the questionnaire surveys were conducted, and the students' English scores were analyzed and compared. The participants were 216 university students taking the general English courses as a requirement for graduation. The results indicated that although the students had high level motivation to learn English, especially for social reasons, their WTC in and outside the classroom was low. Also, unlike the previous studies on foreign language anxiety, their anxiety level was not significant. Anxiety and motivation were negatively correlated; WTC and motivation were positively correlated. However, according to the regression analysis, the explanatory power of the three affective variables was not significant for the students' achievement scores. Several possible reasons and some pedagogical implications are provided in the conclusion.

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Relationships among Intrinsic-Extrinsic Motivation, Self-Efficacy, and Creativity (내·외동기, 자기효능감, 창의성의 관계)

  • Sung, Eun-Hyun
    • Korean Journal of Child Studies
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    • v.27 no.5
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    • pp.183-193
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    • 2006
  • Tests of intrinsic-extrinsic motivation, self-efficacy, and creativity were administered to 75 college students. Results were analyzed by Pearson's correlation, partial correlation and Barron and Kenny's(1986) model. The main results were that (1) creativity was positively correlated with intrinsic motivation and negatively correlated with extrinsic motivation. (2) Self-efficacy played an important mediating role in the relationship between extrinsic motivation and creativity, but not in the relationship between intrinsic motivation and creativity, suggesting that extrinsic motivation negatively affects creativity because it lowers self-efficacy, which is intimately related with creativity. (3) The negative effect of extrinsic motivation on creativity was explained by such sub-factors of self-efficacy as self-confidence and preference for difficult tasks, but not by self-regulatory efficacy.

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Children's Strategies in Peer Conflict Situations : Relationships with Social Behavior and Peer Acceptance (또래갈등상황에서의 유아의 전략, 사회적 행동특성, 그리고 또래수용도와의 관계)

  • Song, Mi Sun
    • Korean Journal of Child Studies
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    • v.22 no.3
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    • pp.229-239
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    • 2001
  • This study investigated the relations among children's strategies in peer conflict situations, social behavior and children's peer acceptance. Eighty-seven kindergarteners were asked about their strategies in response to 8 hypothetical peer conflict situations. Classroom teachers completed the social behavior rating scale to evaluate children's behavioral characteristics. Children's peer acceptance was measured by peer acceptance rating scale. Results indicated that children's strategies for responding to peer conflicts and their social behavior correlated with peer acceptance, although the linkages were different for boys and girls. Furthermore, children's strategies correlated with their social behavior.

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Infant-Child Care Teacher Interaction : Infant Development, Teachers' Sensitivity and Early Home Environment (보육시설에서의 영아-교사 상호작용과 영아의 발달수준, 교사의 민감성 및 초기 가정환경 간의 관련성에 관한 연구)

  • Choi, Eun-Jung;Ha, Ji-Young;Seo, So-Jung
    • Korean Journal of Child Studies
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    • v.30 no.2
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    • pp.71-95
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    • 2009
  • This study investigated relationships among infant development, teacher's sensitivity, home literacy environment, and infant-teacher interaction in the child care setting. Verbal and behavioral interactions between 30 2-year-old infant-teacher pairs were video-recorded during free play activities; teachers' sensitivity was observed by trained observers; infant development was assessed by teachers; data on the early home literacy environment were gathered through maternal self-reported questionnaires. Data were analyzed by descriptive statistics, t-tests, and correlation analyses. Results indicated that boys showed more naming; girls showed more physical contact with teachers. Infants high in overall developmental level showed more behavioral interaction with teachers. Teacher's sensitivity correlated positively with behavioral imitating and negatively with questioning and nodding. Verbal interaction in the home correlated positively with nodding.

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