Ryoo, Na Yung;Shin, Ha Young;Kim, Jae Hyun;Moon, Jin Soo;Lee, Chong Guk
Clinical and Experimental Pediatrics
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v.58
no.9
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pp.336-340
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2015
Purpose: The mean adult height of Koreans has increased since nationwide anthropological measurements began in 1967. The objective of this study was to evaluate differences in heights of Korean late adolescents and young adults within and between the Second and Fifth Korea National Health and Nutrition Examination Surveys (KNHANES II and V). Methods: Koreans aged ${\leq}22$ years with available measurements of height were enrolled from the KNHANES surveys (KNHANES II: n=3,372 [1,732 males and 1,640 females]; KNHANES V: n=6,190 [3,198 males and 2,992 females]). Differences in the height of KNHANES respondents within and between surveys were evaluated according to age and sex. Results: In KNHANES II, there was no significant difference in height between males aged 17-19 years and those aged 20-22 years ($174.3{\pm}0.5cm$ vs. $174.3{\pm}0.6cm$, P=0.995). Females aged 20-22 years were taller than those aged 17-19 years ($159.8{\pm}0.4cm$ vs. $161.0{\pm}0.4cm$, P=0.017). Females aged 17-19 years were significantly taller in KNHANES V than in KNHANES II ($161.2{\pm}0.3cm$ vs. $159.8{\pm}0.4cm$, P=0.004). Respondents aged 20-22 years were taller in KNHANES V than in KNHANES II, although not significantly so; the difference was $0.3{\pm}0.8cm$ in males (P=0.721) and $0.5{\pm}0.6cm$ in females (P=0.386). Conclusion: Koreans appear to continue growing even in their late adolescence and early twenties. Consequently, it may be necessary to expand the reference age ranges of the Korean growth chart. Additionally, a longitudinal growth survey is needed to determine growth patterns and secular trend in height among Koreans.
Shin Y. K.;Kim K. E.;Shin S. C.;You S. J.;Kim S. K.;An B. K.;Kang C. W.
Korean Journal of Poultry Science
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v.31
no.3
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pp.145-150
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2004
Two experiments were conducted to evaluate the nutritional values of rice bran and to examine effects of its dietary supplementation on broiler performances. In the first experiment, true metabolizable energy(TME), nitrogen corrected true metabolizable energy(TMEn), and true amino acid availability(TAAA) values of the rice bran were determined by force-feeding sixteen roosters(ISA-Brown). In the second experiment, 3-week-old male broiler chickens(Avian) were divided into four groups and fed each one of four experimental diets containing 0, 5, 10 or 15% rice bran for 21 days. TME and TMEn values of the rice bran(dry matter basis) were 3.25 kcal/g and 3.12 kcal/g, respectively, and the average TAAA value of the 16 amino acids was 76.21%. The average feed intake and body weight gain of the birds fed diets containing rice bran were apparently greater than those of the control group although the differences were not significant statistically. From the results, it can be concluded that feed formulation using bioavailability values, such as TMEn and TAAA, is an effective method for protecting the high variation in growth performances and that rice bran can be used for broiler feeds to 15% without any significant negative effects.
Porous pavements are recommended as a Low-Impact Development (LID) method which is a strategy to develop a water cycle as close to a natural state as possible, and to solve the urban impervious surface problems. Porous pavements can yield a solution if it provides a more permeable surface with extra space to contain extra water from building roofs. But there are few applications in Korea because of a lack of recognition and experience. Highway engineers are mainly concerned about the infiltration of water into pavement structures. They worry about the weakening of the asphalt mixture and subgrade, and freezing during the winter season due to the infiltration of water. Meanwhile, hydrological experts doubt the effects of the amount of water to control during the flooding season, and environmental experts prefer a non-point pollution treatment system established beside highway. In this study, from reviewing the history and the body of literature about porous pavements, conclusions regarding the most advanced technologies were made. First, traditional thickness designs can be used for porous pavement, no extra distresses was found by weakening and freezing during the winter season. Second, hydrological design can be made by controlling the thickness of the pavement and the outlet of water. Third, the treatment efficiency of non-point pollution of porous pavements is not worse than any other method. Importantly, it's a more eco-friendly solution because of its lower requirement for de-icing agents.
An about 5-month-old, female rabbit was presented with pruritus, alopecia and mucopurulent ocular discharge. On physical examination mild to moderate scales on whole body were observed. Dermatological lesions such as alopecia, erythema, papules, pustules and crusts were observed in the eyelids, nose, inner pinna, medial sites of four feet, metacarpal and metatarsal areas, and cranial site of left stifle joint. Also, mild conjunctivitis, blepharitis and keratitis were found. For extensive dermatologic diagnostic evaluation skin scraping, tape stripping, impression smear, combing, wood' light, bacterial culture and fungal culture were performed. Finally, Cheyletiella spp. was found by combing. Many heterophils and eosinophills were appeared in impression smear. The result of fungal culture was negative. Pasteurella spp was cultured. Definitive diagnosis of Cheyletiellosis and secondary Pasteurella spp infection were established. The rabbit was treated with 6 mg/kg of selamectin topically every two weeks and restricted in cage for one month. During one month of initial treatment, clinical signs such as pruritus, alopecia, scales, papules, pustules and crusts were remarkably improved. However, in spite of good therapeutic response of selamectin the rabbit was dead suddenly at 22 days after second administration of selamectin. This case showed that selamectin was possibly effective for cheyletiellosis in rabbit; safety of selamectin for rabbit was not identified.
The revelations made possible by Edward Snowden, a contractor of the US intelligence service NSA, are a sobering reminder that the Internet is not an 'anonymous' means of communication. In fact, the Internet has never been conceived with anonymity in mind. If anything, the Internet and networking technologies provide far more detailed and traceable information about where, when, with whom we communicate. The content of the communication can also be made available to third parties who obtain encryption keys or have the means of exploiting vulnerabilities (either by design or by oversight) of encryption software. Irrebuttable evidence has emerged that the US and the UK intelligence services have had an indiscriminate access to the meta-data of communications and, in some cases, the content of the communications in the name of security and protection of the public. The conventional means of judicial scrutiny of such an access turned out to be ineffectual. The most alarming attitude of the public and some politicians is "If you have nothing to hide, you need not be concerned." Where individuals have nothing to hide, intelligence services have no business in the first place to have a peek. If the public espouses the groundless assumption that State organs are benevolent "( they will have a look only to find out whether there are probable grounds to form a reasonable suspicion"), then the achievements of several hundred years of struggle to have the constitutional guarantees against invasion into privacy and liberty will quickly evaporate. This is an opportune moment to review some of the basic points about the protection of privacy and freedom of individuals. First, if one should hold a view that security can override liberty, one is most likely to lose both liberty and security. Civilized societies have developed the rule of law as the least damaging and most practicable arrangement to strike a balance between security and liberty. Whether we wish to give up the rule of law in the name of security requires a thorough scrutiny and an informed decision of the body politic. It is not a decision which can secretly be made in a closed chamber. Second, protection of privacy has always depended on human being's compliance with the rules rather than technical guarantees or robustness of technical means. It is easy to tear apart an envelope and have a look inside. It was, and still is, the normative prohibition (and our compliance) which provided us with protection of privacy. The same applies to electronic communications. With sufficient resources, surreptitiously undermining technical means of protecting privacy (such as encryption) is certainly 'possible'. But that does not mean that it is permissible. Third, although the Internet is clearly not an 'anonymous' means of communication, many users have a 'false sense of anonymity' which make them more vulnerable to prying eyes. More effort should be made to educate the general public about the technical nature of the Internet and encourage them to adopt user behaviour which is mindful of the possibilities of unwanted surveillance. Fourth, the US and the UK intelligence services have demonstrated that an international cooperation is possible and worked well in running the mechanism of massive surveillance and infiltration into data which travels globally. If that is possible, it should equally be possible to put in place a global mechanism of judicial scrutiny over a global attempt at surveillance.
The purpose of this research was to investigate how the plyometric training and weight training program, applied in the field for exercise performance of throwing players, influenced improvement of athletic abilities, including agility, maximum muscular power, and strength. After implementing plyometric training and weight training to 21 high school throwing players for 10 weeks, we designed the next step. The 21 subjects were divided into two groups - women's group and men's group. All subjects were tested to determine agility using sidestep, burpee test, reaction time, lower body power and strength using standing long jump, standing jump, 30 m running, squats and leg presses. Additionally, isokinetic strength was measured using Cybex isokinetic dynamometer. The results showed that both groups demonstrated improvement in the standing long jump, standing jump and 30 m running after training. Particularly, the women's group indicated better improvement. Second, women's groups showed higher improvement in the sidestep and burpee test. However, in the reaction time test, the men's group indicated better improvement. Third, both groups showed better improvement in squats and leg presses after training. Particularly, the women's group indicated better improvement. Fourth, in the left and right side extension torque and flexion torque at a velocity of $60^{\circ}$/sec, both groups showed better improvement after training. In the left side extension peak torque, the men's group showed higher improvement, but the women's group showed higher improvement in the left side flexion and extension peak torque. Fifth, both groups showed better improvement in bench pressing and back strength after training. Particularly, the women's group indicated higher improvement.
Journal of the Korean Society for Library and Information Science
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v.46
no.4
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pp.27-60
/
2012
Jeong-Kuk Wonjong Gongsin-Nokgwon(靖國原從功臣錄券) is a book that recorded the titles of position and the names of retainers who helped the King Jung-Jong's revolution. This study aims to analyze the existing two books of Jeong-Kuk Wonjong Gongsin-Nokgwon, in order to figure out the reasons of grant, structure and forms, the characteristics of meritorious retainers' official positions and social status. The result shows that, Jeong-Kuk Wonjong Gongsin-Nokgwon was printed with the Choju-Gapin (初鑄甲寅) letter metal movable types. This book was composed of the beginning(卷首), the body(本文), and the end(卷末). Jeong-Kuk Wonjong meritorious retainers formed the total of 3,340 persons(1st grade: 418 persons, 2nd grade: 1,016 persons, 3rd grade: 1,906 persons) with 432 official titles. Also an analysis of their social status confirmed that 2,376 persons were "Yang-ban(兩班)" which constituted the largest group(2,376 persons: 71.1%), "Jung-in(中人)" were second group(494 persons: 14.8%), "Yang-in(良人)" were 272 persons(8.2%) and "Chun-in(賤人)" were 198 persons(5.9%).
Sulforphane (SF) is a family of biologically active compound that is distributed widely in broccoli. Although studies in rodents have shown that these compounds are effective and versatile inhibitors of tumorigenesis, the role of dietary SF in protection against human cancers remains to be established. The objective of this study was to explore the quantitative relationship between the dietary intake of cruciferous vegetables and urinary excretion of SF. The effects of dietary broccoli on the body's ability to detoxify were studied in six male subjects between the ages of 22~30 years. Study included administering a glucosinolate-free diet for 8 days (control period). The broccoli diet was further subdivided into two periods; 250 g broccoli was fed per day during the first three days and 500 g broccoli was fed per day during the latter three days. After an 8-day washout period, a second experiment was conducted. The same protocol was used with the exception that uncooked broccoli was consumed. Urinary SF mercapturate was measured to determine the bioavailability of broccoli. The linear trend for mercapturate excretion was dose-dependent, resulting in 3.8- and 1.9-fold increase by the third and six days, respectively, compared to the control. Lower amount of SF-NAC conjugate was detected in cooked broccoli compared to fresh broccoli suggesting cooking may have caused a significant loss in glucosinolates in cruciferous vegetables. Therefore, SF can be used as a biomarker for intake of cruciferous vegetables.
The purpose of this research, the importance of security and the means to carry out the spirit of Taekwondo is to identify. First, the target of more than 2 years of taekwondo training has continued to set as a guard, and experience to respond faithfully to the general staff to the administrator from 9 respondents were selected to accomplish this purpose. Through the course of a series of studies which have drawn the following conclusions. First, taekwondo training is created through the politeness, lot of nerve, patience, self-mastery, indefatigable the spirit of taekwondo in the security mission is a positive impact. Typically, the bodyguards make a statement through the body and mind will acquire the spirit of taekwondo. The spirit of taekwondo becomes an important material on the process of security mission as the stress and the occurrence of the situation, such as conflicts within the organization to overcome the negative situation. Second, it requires the right attitude in life, mental health, flexible social attitudes based on the taekwondo spirit. Therefore, the security guards needed in the organization the opportunity to learn the position could get the hierarchy between protection and bodyguard, or supervisor bodyguards and low class bodyguard.
The purpose of this study was to investigate the biomechanical alterations in the punching motion of 10 elderly women after 12 weeks of taekwonaerobics training. Seven infrared cameras(Qualisys MCU-240) and 2 force platforms(Kistler-9286AA) were used to acquire raw data. The results were as follows. First, the minimum joint angles of the lower limbs had a statistically significant difference between both the dorsiflexion/plantar flexion(1eft, $p=0.001^*$) and the inversion/eversion(both, $p=0.009^*$, $p=0.04^*$) from the ankle angle. There were differences in abduction/adduction(left, $p=0.04^*$) from the knee angle, as well as internal/external rotation(both, $p=0.07^*$, $p=0.02^*$) from the hip angle. Second, the maximum resultant joint moments of the lower limbs had statistically significant differences in the inversion/eversion moment from the ankle joint(both, $p=0.05^*$, $p=0.05^*$), the abduction/adduction moment(left, $p=0.08^*$) from the knee joint, and the internal/external rotation moment(right, $p=0.09^*$) from the hip joint. Third, the maximum resultant joint powers of the lower limbs had a statistically significant difference both in flexion/extension joint powers(both, $p=0.05^*$, $p=0.01^*$) and in abduction/adduction(both, $p=0.02^*$, $p=0.00^*$) from the hip joint, as well as abduction/adduction(left, $p=0.00^*$) from the knee joint, In conclusion, the elderly women were somewhat changed after 12 weeks of taekwonaerobics training.
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