• Title/Summary/Keyword: Period

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The Functional Change of Rural Society in Korea: from Food Supply to Balanced Development (한국 농촌의 기능 변화: 식량공급에서 국가균형발전으로)

  • Lim Hyung-Baek
    • The Korean Journal of Community Living Science
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    • v.17 no.1
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    • pp.55-65
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    • 2006
  • The major purposes of this paper are (1) to explore korean rural planning as subplanning of nation planning and regional planning, (2) to explore functional change of korean rural areas, (3) and suggest appropriate policy for functional change of rural society in Korea. I divided korean rural planning into five periods according to its paradigm shift. In the first period of rural planning lay emphasis on food self-supply, antipoverty and improvement of living condition. In the second period of rural planning lay emphasis on food self-supply, green revolution and income gap mitigation between urban and rural areas. In the third period of rural planning lay emphasis on integrated rural development. In the fourth period of rural planning lay emphasis on multifunctionality of agriculture. In the fifth period of rural planning Korea government announced a new policy and lay emphasis on balanced national development. Food supply used to be most important function of rural areas, but it is weakened in recent days. The role as axis for balanced national development become another important function of rural areas.

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Effects of Continuous Antagonistic Muscle Strengthening and Evjenth-Hamberg Stretching on the Pressure Pain Threshold of Forward Head Posture Subjects

  • Koo, Ja Pung;Choi, Wan Suk;Park, Ju Hyun
    • Journal of International Academy of Physical Therapy Research
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    • v.7 no.1
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    • pp.956-964
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    • 2016
  • The purpose of this study was to identify the effects of continuous muscle strengthening applied to the antagonist of the sternocleidomatoid, upper trapezius, and pectoralis major, which are the shortened muscles of forward head posture(FHP) subjects, and Evjenth-Hamberg stretching(EHS) applied to the shortened muscles on changes in pressure pain threshold(PPT). Twenty subjects were divided into the continuous antagonist strengthening(CAS) group(n=10) and the EHS group(n=10), and each group performed its respective exercise three times a week for a six week period. The results were as follows: The comparison of changes in PPT within each group before and after the treatment showed a statistically significant difference(p<.05) according to the treatment period and a statistically significant difference according to the treatment period and method(p<.05). While the comparison of the tests of between subjects effects between the groups did not show a statistically significant difference, the CAS group exhibited better effects. The above results suggest that the combined application of CAS and EHS generates better effects on changes in PPT than the single application of EHS. Given that stretching and muscle strengthening exercises even for the short research period of six weeks could change the PPT, continuous exercises and a correct postural habit for a longer period of time are likely to help prevent chronic pain and correct FHP.

A PERIOD STUDY OF THE CLOSE BINARY V651 CASSIOPEIAE (근접쌍성 V651 Cas의 공전주기 연구)

  • 김천휘;이재우
    • Journal of Astronomy and Space Sciences
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    • v.17 no.2
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    • pp.173-180
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    • 2000
  • All times of minimum light of V651 Cas, which is still less studied so far, were analyzed. From our analysis, it was found that the orbital period of the system may have varied in a periodic manner. After assuming that the period change is produced by the light-time effect due to a third body in the system, attempts to derive the orbital elements of the light-time orbit were made. The resultant values for the period, semi-amplitude, and eccentricity of the light-time orbit were 6.${y}^{25}$, 0.${d}^{0013}$, and 0.77, respectively. The future observations of times of minimum light of V651 Cas are needed to confirm the existence of the third body we suggested in this paper.

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A Study on the Stress of the Family Caregivers for Patients with Stroke (뇌졸중환자 가족간병원의 스트레스에 관한 연구)

  • Kwon, Won-An;Kim, Han-Soo
    • The Journal of Korean Physical Therapy
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    • v.20 no.2
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    • pp.25-32
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    • 2008
  • Purpose: The purpose of this study was to provide the basic data to decrease the stress of the family caregivers. Methods: The questionnaire was administrated to the family caregivers of 156 patients with stroke who consented to be interviewed. Among 156 caregivers, we analyzed 120 caregivers. We evaluated on the stress of the family caregivers. Results: First, the general characteristics of patient with CVA were high at 82.55% in male, 55.83% in infarction, 53.33% in the left hemiplegia, 47.50% in sixties, 80.83% in 1 recurrence rate, 27.50% in 1-2 years of disease period. Second, the general characteristics of family caregivers were high in above sixties, female in gender, existence in religion, married in marital status, high school in educational level, below 1 million-won in monthly income, spouse in relationship with patient, below 1 years in total caring period. Third, it showed that stress of family caregivers above 3.0 score has 8 items. Forth, the patient's characteristic that have the influence on the stress was significant in the period of disease(p<0.05). Finally, the characteristics of family caregivers that have the influence on the stress were the monthly income, caring period(p<0.05). Conclusion: These findings indicated that the stress of the family caregivers was correlated with the time in hospital, the income and nursing period.

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Study on the prohibition of acupuncture of hapgok (LI4) and samumgyo (SP6) during pregnancy (임신금침혈(姙娠禁鍼穴) 중 합곡(合谷)(LI4), 삼음교(三陰交)(SP6)에 관한 고찰(考察))

  • Lee, Soo-Jin
    • Korean Journal of Acupuncture
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    • v.25 no.1
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    • pp.51-60
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    • 2008
  • Objectives : The aim of this study was to investigate the mechanism and the clinical significance of prohibition of acupuncture of LI4 and SP6 during the period of pregnancy. Methods : It was investigated the prohibition of acupuncture during the period of pregnancy based on the literature reviews. Previous studies identified the acupuncture treatment of animal and clinical studies during the period of pregnancy and labor in China Academic Journal(CAJ). These papers were classified and investigated to clarify the rationale of the prohibition of acupuncture during the period of pregnancy. Results and Conclusions : The contraindicated points during the period of pregnancy are Hapgok (LI4), Samumgyo (SP6), Songmun (CV5), Kwanwon (CV4), Sosang (LU11), Chium (BL67), Kollyun (BL60). The uterine contraction can be induced by the stimuli of Hapgok (LI4) via endocrine system and Samumgyo (SP6) via nervous system. Both Hapgok (LI4) and Samumgyo (SP6) also can be used in various diseases such as induction of abortion, facilitation of parturition, stabilization of embryos, cross birth and so on.

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Direct writing of multi-layer diffraction grating inside fused silica glass by using a femtosecond laser (펨토초 레이저를 이용한 실리카 내부의 다층 회절격자 가공 기술)

  • Choi, Hun-Kook;Kim, Jin-Tae;Sohn, Ik-Bu;Noh, Young-Chul
    • Laser Solutions
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    • v.14 no.3
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    • pp.17-20
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    • 2011
  • We fabricated a multi-layer diffraction grating inside fused silica glass by using a femtosecond laser direct writing method. The femtosecond laser with a wavelength of 515 nm, a pulse width of 250 fs, a repetition rate of 100 kHz, and an average output power of 6 W was used. Two layer diffraction grating with a grating period of $6{\mu}m$ was successfully fabricated with the layer gap of 0.5, 1, 2, 3, and $5{\mu}m$, respectively. Also, we investigated the diffraction pattern by illuminating a He-Ne laser beam. Finally, we demonstrated the diffraction grating with a grating period of $3{\mu}m$ by adjusting the gap of each layer with a grating period of $6{\mu}m$. Femtosecond laser direct writing technology of multi-layer has a potential to fabricate the diffraction grating with a grating period of below $1.5{\mu}m$.

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Changes in Freshness and MIneral Contents during Storage of Kaesojoo (저장기간의 경과에 따른 개소주의 선도 및 무기물의 변화)

  • 박창일;김영직
    • Food Science of Animal Resources
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    • v.18 no.3
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    • pp.240-247
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    • 1998
  • This experiment was carried out investigate changes in proximate composition, pH, volatile basic nitrogen (VBN), thiobarbituric acid value (TBA) and mineral contents of pure Kaesojoo (PK) and Kaesojoo added medicinal herbs (KMH) during storage period (30 days) at 4$^{\circ}C$ and -18$^{\circ}C$. Two dogs with 12kg live weight were slaughtered to obtain samples from extracts. The results obtained were as follows: Crude fat and ash of KMH were higher than those of the PK, but the moisture and crude protein was higher in the PK (p<0.001). Proximate composition did not affect cold and frozen storage and storage period. the pH of the PK through all periods. The VBN value of all treatment gradually increased during storage period. That of KMH tend to be lower than PK, all treatment was maintained freshness. The TBA value of all treatment gradually increased during storage period (p<0.05). Cold storage and PK tend to be higher frozen storage and KMH. Among minerals Ca, K, Mg, Na, P contents of the KMH were higher than those of the PK and the Ca, Mg, Zn contents were significantly changes (p<0.05) according to the storage period and temperature.

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Ascorbic acid and Lipid Contends of the Silkworm eggs(Bombyx mori)during its development of Embryo. (가잠난 배자발육 과정에서 Ascorbic acid와 Lipid의 변동에 관하여)

  • 김원경;임영우;전형원
    • Journal of Sericultural and Entomological Science
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    • v.8
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    • pp.35-40
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    • 1968
  • As a result of investigating the change of Ascorbic acid and Lipid which have a relation with metabolism of a silkworm egg in the process of the growth of embryo is silkworm eggs. The following facts have been found 1) Ascorbic acid has gradually increased before the period of the Byong B embryo and it has decreased after period of Byong B embryo. 2) Triglyceride and Total cholesterol has gradually increased before the period of the Byong B embryo and it has decreased after period of the Byong B embryo. 3) Phospholipid has gradually decreased before the period of the Byong A embryo and it increased during the Byong B embryo and decreased again at same stage. It has increased from the head pigment of embryo to hachting. 4) Free Fatty acid decreased during the Byong A embryo stage and increased from the Byong B embryo stage to the Ki A embryo stage and decreased again and increased shortly before the hachting.

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Gelatinization Properties of Starch during Steeping of Potato (감자의 수침에 따른 전분의 열 호화 특성)

  • 정난희;김경애;김성곤;서복영;전은례
    • Korean journal of food and cookery science
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    • v.14 no.3
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    • pp.213-218
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    • 1998
  • The changes in gelatinization patterns of potato were investigated while steeping in water for 7 days at 30${\pm}$1$^{\circ}C$. The transmittance of 0.1% starch suspension was increased rapidly from 60$^{\circ}C$ in raw starch and the starch steeped for 2 days, and increased rapidly from 65$^{\circ}C$ in the starch steeped for 4 and 6 days. As the steeping period increased, the transmittance was decreased at above condition. The gelatinization temperature of the starch measured by differential scanning calorimetry was increased from 62.79$^{\circ}C$ to 63.72$^{\circ}C$ as the steeping period increased. The gelatinization enthalpy reached the maximum in the starch steeped for 4 days. By amylograph, the initial gelatinization temperature was increased from 66$^{\circ}C$ to 84$^{\circ}C$ as the steeping period increased. Peak viscosity was decreased during steeping and the starch steeped for 5 days had no peak viscosity. Peak height after cooling to 50$^{\circ}C$ was increased up to the 4th day and began to decrease. As the steeping period increased, there was much loss of birefringence at higher temperature. The crystallinity by X-ray diffraction disappeared from 65$^{\circ}C$.

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Effects of Agitation and Temperature Activation on Lipolysis in Goat Milk (산양유의 지방분해에 미치는 온도활성화 및 교반의 영향)

  • 김거유;이승범
    • Food Science of Animal Resources
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    • v.20 no.2
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    • pp.107-113
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    • 2000
  • This study was carried out to investigate the effects of temperature activation and agitation on lipolysis of goat milk. When goat milk was temperature activated twice at intervals of 12hours, free fatty acids were significantly increased after the first activation, but increased slightly during the re-cooling period and after the second activation. Lipolysis of the goat milk warmed at $30^{\circ}C$ was significantly facilitated during the re-cooling period. Lipolysis of the goat milk warmed at $30^{\circ}C$ was much higher than those warmed at $10^{\circ}C$ and $40^{\circ}C$ respectively. The highest lipolysis was occurred when the goat milk was warmed at $30^{\circ}C$ for 5 minutes after pre-cooling for 24 hours at $40^{\circ}C$. However, any significant difference was not found in the milk warmed at $40^{\circ}C$, regardless of the pre-cooling period. Lipolysis of the goat milk warmed and agitated at $30^{\circ}C$ was significantly facilitated during the re-cooling period. The lipolysis of that at $30^{\circ}C$ was significantly facilitated during the re-cooling period. The lipolysis of that at $30^{\circ}C$ was much enhanced with agitation. The lipolysis was much higher when agitated at $30^{\circ}C$ than when agitated at $10^{\circ}C$. The length of agitation time at $30^{\circ}C$ didn't give any effect on lipolysis.

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