• 제목/요약/키워드: age reduction

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인공지반용 고수밀 기반 자기치유성 콘크리트의 내구특성에 관한 연구 (Studies on the Durable Characteristics of Self-Healing Concrete with High Water-Tightness for Artificial Ground)

  • 송태협;박지선;김병윤
    • 대한건축학회논문집:구조계
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    • 제35권9호
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    • pp.199-206
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    • 2019
  • Experimental study on the durability characteristics to examine the feasibility of concrete with high water-tightness and self-healing performance to minimize maintenance of concrete for artificial ground is as follows. 1) When blending agent, swelling agents, and curing accelerator were added on the ternary system cement with blast-furnace slag fine particles and fly ash to give a self-healing property, higher blending strengths by 82% at design standard strength of 24MPa and by 74% at design strength of 30MPa, respectively could be obtained. 2) The permeability test for the specimens having high water-tightness and no shrinkage showed that the permeability was reduced at maximum of 98%. However, the permeability was decreased as the design strength was increased, showing the reduction rate of 87% at the design strength of 50MPa. 3) The depth of carbonation of blast-furnace slag and fly ash was increased in all the specimens compared with those of OPC only. However, as the material age was increased, carbonation penetration depth was decreased compared with the reference blend. 4) Compared with the reference blending using only OPC, the freeze-thaw resistance was higher in the case of blending with 40% of blast-furnace slag and 10% of fly ash at the design standard strength of 50MPa. In addition, the freeze-thaw resistance in general was superior in the design standard strength of 50MPa with the lower water-binder ratio (W/B) as compared with the design standard strength of 24MPa and 30MPa with the high water-binder ratios.

부분 체중지지를 이용한 앞, 뒤로 걷기 운동이 불완전 척수손상환자의 보행에 미치는 효과 (Effect of Forward, Backward Walking using Partial Weight Bearing on Walking of the Patient with Incomplete Spinal Cord Injury)

  • 김석환;정재훈
    • PNF and Movement
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    • 제9권2호
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    • pp.29-37
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    • 2011
  • Purpose : The purpose of this study was to find out of an effect of forward, backward walking using partial weight bearing on walking of the patient with incomplete spinal cord injury. Methods : The average age, and the term of being sick of 6 patients who were selected as the subjects with incomplete spinal cord injury and who received medical attention in the National Rehabilitation Hospital, was 50.3 years old, and 10.7 months, and those were also the patients that were classified as ASIA-C or D by ASIA. The forward, backward walking using a partial weight bearing system as the research method, took total 6 weeks, 3 days per week, 3 times per day, total 45 minutes for each time(15 minutes for a time, 5 minutes for a breathing time), and the 15 minutes was used for forward walking 7.30 minutes, backward walking for 7.30 minutes, to find out before and after the test of WISCI, PCI, Walking Speed, Motor Score of Lower Limbs for the selected patients with incomplete spinal cord injury. Results : The result was showed WISCI from 17 points to 17 points that is, no change occurred at all, and PCI from $161.01{\pm}103.06$ to $74.97{\pm}58.19$, some amount of reduction that is not statistically significant(p<.05). Regarding walking speed, it increased from $24{\pm}.07m/sec$ to. $61{\pm}.35m/sec$, that is statistically significant(p<.05), and motor score of lower limbs showed statistically significant increase like from $33.17{\pm}7.08$ to $37{\pm}5.14$(P<.05). Conclusion : The 4 evaluation categories seem to have shown differences due to an insufficient number of subjects, and short test term, and it seems the more diverse task-oriented walking exercises should be studied in the coming days.

세종특별자치시 학교급식 영양(교)사의 학교급별 직무만족도와 직무중요도 (School Dietitian's Job Satisfaction and Job Importance According to the School Types in Sejong City)

  • 유소영;김미현
    • 대한영양사협회학술지
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    • 제27권2호
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    • pp.92-112
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    • 2021
  • This study compared the job satisfaction and job importance of school dietitians according to various school types in Sejong. One hundred and twenty-six school dietitians working in kindergartens (n=36), elementary schools (n=42), middle schools (n=22), and high schools (n=26) participated in this questionnaire survey. The subjects were divided into four groups according to the school types. Half of the subjects were over 41 years of age, with 64.3% graduating from graduate school. The percentage of nutrition teachers was the highest in middle schools at 95.4%, followed by the elementary school at 90.5% and high school at 73.1%, whereas 100% of the kindergarten dietitians were not nutrition teachers (P<0.001). The percentage of the running status of nutrition education classes/activities was lowest in kindergartens (P<0.001). The job satisfaction score in the job itself area was significantly lower in kindergartens and high schools than in middle schools (P<0.01). The satisfaction scores of human relationships, working environment, personnel evaluation, and welfare did not differ significantly among the schools. As for the Job importance, the scores of nutrition counseling were significantly lower in middle school than in elementary and high schools (P<0.05). In cooking and distribution management, high schools were less important than other school levels (P<0.05). These findings highlight the need for the placement of nutrition teachers in kindergarten to promote nutrition education, the reduction of workload for school dietitians/nutrition teachers and additional placement of dietitians by the appropriate workload such as the number of people and meals to serve.

성대 용종의 예후 인자와 음성 위생법 치료 효과 분석 (Analysis for Risk Factors and Effect of Vocal Hygiene Education in Patients of Vocal Polyp)

  • 최나연;김동규;이길준
    • 대한후두음성언어의학회지
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    • 제32권1호
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    • pp.24-28
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    • 2021
  • Background and Objectives Vocal polyp is one of the most common benign diseases of vocal fold caused by overuse of voice. Laryngeal microsurgery is the first treatment of choice for vocal polyp. However, surgery has many risks such as side effects of general anesthesia, injury of tooth and psychological burden. And we often experience reduction of vocal polyps without surgical procedure. The purpose of study is to evaluate the effect of non-surgical treatment such as vocal hygiene education and proton pump inhibitor (PPI) in patients with vocal polyp. Materials and Method We performed retrospective study for seventy-three patients of vocal polyp who treated with non-surgical modalities such as vocal hygiene education and PPI over three months. Treatment outcomes and risk factors such as age, sex, polyp size, position, symptom duration, presence of laryngopharyngeal reflux (LPR) symptoms, smoking history, voice abuse history and vocal hygiene education were evaluated by comparison between polyp size improved group and non-improved group. Results 5.5% of enrolled patients showed complete response and 23.3% showed partial response without surgery. Polyp size improved group significantly carried out more practice of vocal hygiene education treatment than the non-improved group (p=0.040). And the presence of LPR symptoms [hazard ratio (HR) 3.368, confidence interval (CI) 1.055-10.754, p=0.040] and not performing of vocal hygiene education (HR 3.664, 95% CI 1.078-12.468, p=0.038). Conclusion Vocal hygiene education can be a useful treatment option when making a decision to treat with vocal polyp.

Effect of Manual Acupuncture for Mild-to-Moderate Carpal Tunnel Syndrome: A Systematic Review

  • Huh, Jeong Ho;Jeong, Hye In;Kim, Kyeong Han
    • 대한약침학회지
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    • 제24권4호
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    • pp.153-164
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    • 2021
  • Objectives: Despite the low cost and high accessibility of manual acupuncture (MA) treatments for the carpal tunnel syndrome (CTS), this intervention has not been uniformly evaluated in systematic reviews (SR), and no SR has evaluated MA monotherapy for CTS. This review was conducted to summarize the findings and undertake a quality assessment of randomized controlled trials (RCTs) of acupuncture treatment methods for mild-to-moderate CTS to identify clinical evidence for the use of MA in CTS. Methods: We searched five databases for articles on relevant RCTs that were published until June 2021 without imposing specific restrictions, such as age or sex, on CTS patients. RCTs that evaluated MA were included without any restriction on comparator interventions. Measurement tools for evaluating pain reduction and functional improvement or for evaluating efficacy using electrophysiological indicators were included as outcome measures. Results: We included seven RCTs, of which three studies reported both post-treatment improvement effects and statistical significance using p-values for all outcomes. Five studies reported statistically significant intergroup differences (p-values for all outcomes) in posttreatment improvement. None of the studies reported severe adverse effects of MA. In all of the RCTs, the reporting rates of the 2c, 2a, and 6a items of STRICTA 2010 were 14%, 29%, and 29%, respectively. PC7 (Daereung) was used to treat CTS in all of the included studies. Conclusion: MA can be used for CTS treatment without serious adverse effects. PC7 was the most commonly used acupoint. In order to ensure objective and reliable reporting, accurate standardization of acupuncture treatment methods acupoint terms should be undertaken in future RCTs.

Qualitative attributes of meat from Teramana goat kids, an Italian native breed of the Abruzzo region

  • Ianni, Andrea;Bennato, Francesca;Martino, Camillo;Luca, Alessio Di;Martino, Giuseppe
    • Animal Bioscience
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    • 제35권7호
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    • pp.1091-1099
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    • 2022
  • Objective: The aim of this work was the characterization of the qualitative aspects of meat obtained from Teramana goats, an Italian indigenous breed of the Abruzzo region. Specifically, the study included a comparison with meat samples deriving from Saanen goat kids reared in the same environment and applying the same feeding protocol. Methods: Upon reaching about 7 months of age the animals were slaughtered and samples of muscle tissue were collected to be analyzed. Specifically, meat samples were subjected to evaluations of the physical parameters, including color and the meat ability to retain water, in addition to chemical evaluations that were focused to the determination of the total lipids amount, fatty acids composition, lipid oxidation, and volatile profile. Results: The meat samples obtained from the indigenous breed showed a less intense reddish color and no significant variations for the muscle tissue tendency to retain water, both regarding fresh and cooked meat. Several differences were instead observed in the fatty acid profile. The Teramana samples were richer in saturated fatty acids (p<0.01) and interestingly showed higher concentrations of rumenic acid (p<0.05), a conjugate of linoleic acid that has been associated with important health benefits for the consumers. Another important finding for these meat samples was the marked resistance to oxidative events, as evidenced by the thiobarbituric acid reactive substances-test (p<0.05) and by the characterization of the volatile profile that highlighted a strong reduction in the relative percentage of hexanal (p<0.05), commonly associated to lipid oxidation and the development of unpleasant aromatic notes. Conclusion: The collected data, therefore appeared useful for the valorization of the food product derived from the Teramana goat, although no sensory information has been collected to define the degree of acceptability by the consumers.

大巡真理會的女性宗教參與 : 以驪州本部道場為例 (Women's Religious Engagement at Daesoon Jinrihoe's Yeoju Headquarters)

  • 李玉珍
    • 대순사상논총
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    • 제34집
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    • pp.75-105
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    • 2020
  • 不同於以往教義和文獻為主的研究方法, 本文是首次結合問卷量化, 訪談調查, 從女性參與者觀點, 制度層面的研究。2019年10月23日至26日期間, 我到驪州本部道場進行田調, 共計回收有效問卷81份。期待落實大巡真理會的發展與理念, 更進一步比較分析東亞新興宗教的女性宗教生態(niche)。本文先回顧相關大巡真理會的婦女研究, 輔以其他大巡真理會的資料。透過早期的夫人會 (1980年成立) 到社會福祉部的婦女會, 國際志工團辦公室的青年會的女學生, 理解女性在宗教慈善活動扮演的角色以及教內的養成教育。然後以性別為比較主軸, 進行問卷分析。受訪者基本資料包含性別, 年齡, 籍貫, 教育程度 ; 其宗教參與則以修行經歷和教團分工為主, 包含入道年數, 家庭信教代別, 職業分布, 教內工作, 教內職級。上述研究變項與問卷問項顯示, 性別對大巡真理會信徒在弘法佈教中的自我預期, 教內分工, 皆存在影響效果。調查顯示, 大巡真理會的女信眾無論在教育機會, 工作分配和升遷上都符合社會期待的性別角色。這種和諧互補的兩性關係, 符合教義和現代韓國的新興宗教與家庭倫理。其各項男女差距以及分布情況並未產生性別分隔的情況, 驪州本部道場受雇用的女性仍然具優勢。

Comparison of intermaxillary fixation techniques for mandibular fractures with focus on patient experience

  • Kim, Young Geun;Yoon, Sung Ho;Oh, Jae Wook;Kim, Dae Hwan;Lee, Keun Cheol
    • 대한두개안면성형외과학회지
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    • 제23권1호
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    • pp.23-28
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    • 2022
  • Background: Intermaxillary fixation (IMF) is a technique that allows for the reduction and stabilization of mandibular fractures. Several methods of IMF, such as self-tapping screws or arch bars, have been developed. This study aimed to validate the usefulness of IMF with a self-tapping screw compared to IMF with arch bars with focus on the patients' perspective. Methods: We retrospectively reviewed the medical records of all patients who were treated for mandibular fractures at our hospital between August 2014 and February 2021. A total of 57 patients were enrolled in this study. Thirteen patients were excluded from the analysis: three patients were lost to follow-up, and 10 patients did not undergo IMF. Finally, 44 patients were analyzed, of which 31 belonged to the arch bar group, and 13 belonged to the screw group. Patient discomfort and pain during IMF application and removal were analyzed using a patient self-assessment questionnaire. The surgeon also assessed oral hygiene, IMF stability, and occlusion. Results: We applied IMF to 34 men (77%) and 10 women (23%). The mean age of the patients was 37.3 years. The most common fracture site was the angle (30%), followed by the parasymphysis (25%), the body (23%), the condyle (11%), and the ramus (11%). Patient discomfort and oral hygiene were statistically favorable in the screw group. The IMF application time was statistically shorter in the screw group (p< 0.001). IMF stability was not statistically different between the two groups. The pain score during IMF removal was lower in the screw group (p< 0.001). Conclusion: Compared to arch bars, IMF screws provide more comfort during the IMF period, help maintain favorable oral hygiene, and have a shorter application time. From the patient's perspective, IMF screws are an excellent alternative to conventional arch bars when applicable.

Carcass and meat traits of bubaline finished on sugarcane-based diets supplemented with spineless cactus as a replacement for wheat bran

  • Borges, Christiano Raphael de Albuquerque;Carvalho, Francisco Fernando Ramos de;Neves, Maria Luciana Menezes Wanderley;Neto, Jose Diogenes Pereira;Vieira, Guilherme Heliodoro Pedroso;Pessoa, Ricardo Alexandre Silva
    • Animal Bioscience
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    • 제35권1호
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    • pp.47-53
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    • 2022
  • Objective: An experiment was conducted to evaluate the effects of increasing levels of spineless cactus (0%, 33%, 66%, and 100%) used as a substitute for wheat bran in buffalo diets on quantitative and qualitative traits of the meat and carcass. Methods: Twenty Murrah buffaloes at 18 months of age, with a mean initial weight of 292.9±57.3 kg, were randomly allocated to four treatments with five replicates. The animals were slaughtered after 90 days in the feedlot. The effects of spineless cactus as a replacement for wheat bran in the diet of the buffaloes on the carcass and meat traits, slaughter weight, carcass yield and carcass measurements were studied. Results: Increased spineless cactus levels led to linear reduction in average daily gain, slaughter weight, hot and cold carcass weight, compactness index and in the amount of muscle in the carcass, and there is no difference between the control treatment and the 33% replacing level for these parameters. The quality of the meat was not influenced by the treatments. Conclusion: Spineless cactus can replace wheat bran by up to 33% in sugarcane-based diets for buffaloes, without influencing quantitative and qualitative traits of the meat and carcass.

국내 성인환자에서 이상지질혈증 약물치료와 골다공증 상관성 (The Association between Medication Use for Dyslipidemia and Osteoporosis)

  • 이한솔;김종윤;유기연
    • 한국임상약학회지
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    • 제31권4호
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    • pp.278-284
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    • 2021
  • Background: Osteoporosis is a disease that affects the quality of life and imposes a high socioeconomic burden. Studies have reported that statins, a HMG CoA reductase inhibitor, have a positive or negative effect on osteoporosis. The purpose of this study was to analyze the correlation between statins and osteoporosis risk. Methods: We used the total patient sample data of the Health Insurance Review and Assessment Service (HIRA-NPS-2018). We analyzed the prevalence of osteoporosis in adult patients of Korea who were diagnosed with dyslipidemia and were prescribed statins at the same time. The odds ratio (OR) according to the intensity and type of statin was used to confirming the prevalence. Results: Among the 1,138,899 patients included in the study, 143,895 patients used statins and 27,524 patients (19.13%) were diagnosed with osteoporosis in the statin group. The OR value of statin group was 0.96 (95% CI 0.94-0.98), confirming that the prevalence of osteoporosis decreased, and a significant decrease was seen in all statin intensity. Some of the moderate-intensity statins rather increased the prevalence of osteoporosis, but atorvastatin and rosuvastatin obtained positive results at both medium- and high-intensity doses, and lovastatin, a low-intensity statin, showed the greatest reduction in the prevalence of osteoporosis. Conclusion: We found that the prevalence of osteoporosis was reduced in the statin group, and there was a constant correlation regardless of gender or age. However, a large, prospective, double-blind and randomized study is needed for a long period of time to demonstrate the effectiveness of statins.