• 제목/요약/키워드: HBM

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해저 연약지반 보강 조건에 따른 인공어초 침하 거동에 대한 실험적 연구 (An Experimental Study of Settlement Behavior of Artificial Reef according to Reinforcement Characteristics)

  • 윤대호;김윤태
    • 한국지반신소재학회논문집
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    • 제16권1호
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    • pp.53-61
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    • 2017
  • 바다 자원의 조성을 위해 시설되는 인공어초는 해저 연약지반에 설치될 경우 침하 및 세굴에 의한 기능 상실이 발생할 수 있다. 따라서 본 연구에서는 해저 연약지반의 보강에 따른 인공어초의 침하 거동을 알아보기 위해 모래, 실트 및 점토 지반을 각각 조성하여 관입실험, 침하실험 등과 같은 다양한 실내실험을 수행하였다. 무보강(unreinforced), 지오그리드(geogrid) 보강 및 하이브리드 대나무매트(hybrid bamboo mat, HBM) 보강과 같은 3종류의 보강과 보강재의 면적에 따른 특성을 살펴보았다. 실험 결과 보강재의 면적이 증가할수록 보강 효과가 증가하는 경향을 보였으며, HBM이 지오그리드 단일 보강에 비해 더 뛰어난 보강 효과를 보였다.

Facilitator Psychological Constructs for Mammography Screening among Iranian Women

  • Taymoori, Parvaneh;Moshki, Mahdi;Roshani, Daem
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권17호
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    • pp.7309-7316
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    • 2014
  • Background: While many researchers often use a theoretical framework for mammogram repeat interventions, it seems they do not apply an identified mediation analysis method. The aim of this study was to determine the mediators of mammogram replication behavior in two tailored interventions for non-adherent Iranian women. Materials and Methods: A sample population of 184 women over 50 years old in Sanandaj, Iran, was selected for an experiment. Participants were randomly allocated into one of the three conditions: 1) an intervention based on the Health Belief Model (HBM) 2) an intervention based on an integration of the HBM and selected constructs from the Theory of Planned Behavior (TPB), and 3) a control group. Constructs were measured before the intervention, and after a 6-month follow-up. Results: Perceived self-efficacy, behavioral control, and subjective norms were recognized as mediators in the HBM and selected constructs from the TPB intervention. Perceived susceptibility, severity, barriers, self-efficacy and behavioral control met the criteria for mediation in the HBM intervention. Conclusions: This study was successful in establishing mediation in a sample of women. Our findings enrich the literature on mammography repeat, indicating key intervention factors, and relegating redundant ones in the Iranian populations. The use of strategies to increase mammography repeat, such HBM and TPB constructs is suggested to be important for maintaining a screening behavior, once the behavior has been adopted.

Factors Associated with Attendance in a Nutrition Education Program for Hyperlipidemic Patients

  • Yim, Kyeong-Sook;Kim, Young-Joo;Cho, Young-Yun;Rha, Mi-Yong;Kim, Duk-Kyoung
    • Journal of Community Nutrition
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    • 제3권1호
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    • pp.21-29
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    • 2001
  • This study was conducted to examine factors with attendance in hyperlipidemia nutrition eduction program among 101 hyperlipidemic outpatients (38 males 63 females) at Samsung Medical Center We employed the Health Belief Model (HBM) as the theoretical framework The individual nutrition education and counseling program was scheduled with 4- half hour session sin 2 to 4 weeks intervals. Upon initiation of the program a trained dietitian surveyed HBM constructs and psychosocial factors. The following were included perceived susceptibility to cardiovascular disease(CVD) perceived severity to CVD percieved benefits to diet modification perceived barriers to persistence in maintaining therapy and self efficicacy and social support from family Sociodemographic data health factors stress level nutrition knowledge, and 24-hour dietary recall behavior were also surveyed All these data was analyzed according to the number of nutrition sessions attended The subjects were 55.9$\pm$9.4 year old and 24.6$\pm$kg/㎡ Sociodemographic factors were not associated with the number of nutrition sessions attended HBM constructs and psychosocial factors were significantly associated with the number of nutrition sessions attended. According to Spearman correlation coefficients. From stepwis regression analyses using HBM constructs as independent variables perceive barriers to persistence in maintaining diet therapy (negative) proved to be the strongest predictors for the number of nutrition sessions attended (partial R$^2$= 72.3%) followed by perceived severity to CVD and self efficacy (model R$^2$=76.6% The findings indicate that HBM constructs and psychosocial factors were closely associated with patient attendance It suggests that information and guidance to minimize patients perceived barriers to diet therapy might help to improve patients to scheduled appointments in nutrition education programs.

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저수온기 넙치(Paralichthys olivaceus) 사료 내 가수분해 혈분(Hydrolyzed Blood Meal)의 이용성 평가 (Evaluation of Dietary Supplementation with Hydrolyzed Blood Meal for Olive Flounder Paralichthys olivaceus, in Low Water Temperature Conditions)

  • 임종호;고대현;조화정;이경준
    • 한국수산과학회지
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    • 제56권4호
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    • pp.532-540
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    • 2023
  • This study aimed to evaluate the effects of dietary supplementation with two different types of hydrolyzed blood meal (HBM) on the growth performance, feed utilization, digestibility and innate immunity of olive flounder Paralichthys olivaceus. A control diet (Con) consisting of 60% fish meal was formulated and four diets containing two different types of HBM at varying concentrations were prepared 2.5 and 5.0% liquid HBM (L2.5 and L5.0) and 0.5 and 1.0% powdered HBM (P0.5 and P1.0). A total of 450 olive flounder (average body weight: 50±0.07 g) were distributed in 15 tanks (240 L), with three replicate groups per diet. The fish were fed the diets to apparent satiation for 9 weeks and subsequently exposed to Edwardsiella tarda. The results showed that fish fed L2.5, L5.0 and P0.5 diets exhibited significantly higher lysozyme activity compared to those fed the Con and P1.0 diets. During the challenge test against E. tarda, the L5.0 and P0.5 fish groups exhibited higher disease resistance than that of the Con group. These findings indicate that dietary supplementation with HBM could positively effect the innate immunity and disease resistance of olive flounder.

n-MOSFET 정전기 방전 분석 (Electrostatic Discharge Analysis of n-MOSFET)

  • 차영호;권태하;최혁환
    • 한국전기전자재료학회논문지
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    • 제11권8호
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    • pp.587-595
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    • 1998
  • Transient thermal analysis simulations are carried out using a modeling program to understand the human body model HBM ESD. The devices were simulated a one-dimensional device subjected to ESD stress by solving Poison's equation, the continuity equation, and heat flow equation. A ramp rise with peak ESD voltage during rise time is applied to the device under test and then discharged exponentially through the device. LDD and NMOS structures were studied to evaluate ESD performance, snap back voltages, device heating. Junction heating results in the necessity for increased electron concentration in the space charge region to carry the current by the ESD HBM circuit. The doping profile adihacent to junction determines the amount of charge density and magnitude of the electric field, potential drop, and device heating. Shallow slopes of LDD tend to collect the negative charge and higher potential drops and device heating.

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Buffer Policy based on High-capacity Hybrid Memories for Latency Reduction of Read/Write Operations in High-performance SSD Systems

  • Kim, Sungho;Hwang, Sang-Ho;Lee, Myungsub;Kwak, Jong Wook;Park, Chang-Hyeon
    • 한국컴퓨터정보학회논문지
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    • 제24권7호
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    • pp.1-8
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    • 2019
  • Recently, an SSD with hybrid buffer memories is actively researching to reduce the overall latency in server computing systems. However, existing hybrid buffer policies caused many swapping operations in pages because it did not consider the overall latency such as read/write operations of flash chips in the SSD. This paper proposes the clock with hybrid buffer memories (CLOCK-HBM) for a new hybrid buffer policy in the SSD with server computing systems. The CLOCK-HBM constructs new policies based on unique characteristics in both DRAM buffer and NVMs buffer for reducing the number of swapping operations in the SSD. In experimental results, the CLOCK-HBM reduced the number of swapping operations in the SSD by 43.5% on average, compared with LRU, CLOCK, and CLOCK-DNV.

Xiang Study: an association of breastmilk composition with maternal body mass index and infant growth during the first 3 month of life

  • Peng, Xuyi;Li, Jie;Yan, Shuyuan;Chen, Juchun;Lane, Jonathan;Malard, Patrice;Liu, Feitong
    • Nutrition Research and Practice
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    • 제15권3호
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    • pp.367-381
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    • 2021
  • BACKGROUND/OBJECTIVES: This study aimed to establish a mother and child cohort in the Chinese population, and investigate human breastmilk (HBM) composition and its relationship with maternal body mass index (BMI) and infant growth during the first 3 mon of life. SUBJECTS/METHODS: A total of 101 Chinese mother and infant pairs were included in this prospective cohort. Alterations in the milk macronutrients of Chinese mothers at 1 mon (T1), 2 mon (T2), and 3 mon (T3) lactation were analyzed. HBM fatty acid (FA) profiles were measured by gas chromatography (GC), and HBM proteomic profiling was achieved by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry (MS). RESULTS: During the first 3 mon of lactation (P < 0.05), significant decreases were determined in the levels of total energy, fat, protein, and osteopontin (OPN), as well as ratios of long-chain saturated FA (including C16:0, C22:0 and C24:0), monounsaturated FA (including C16:1), and n-6 poly unsaturated FA (PUFA) (including C20:3n-6 and C20:4n-6, and n-6/n-3). Conversely, butyrate, C6:0 and n-3 PUFA C18:3n-3 (α-linolenic acid, ALA) were significantly increased during the first 3 mon (P < 0.05). HBM proteomic analyses distinguished compositional protein differences over time (P = 0.001). Personalized motherinfant analyses demonstrated that HBM from high BMI mothers presented increased total energy, fat, protein and OPN, and increased content of n-6 PUFA (including C18:3n-6, C20:3n-6 and n-6/n-3 ratio) as compared with low BMI mothers (P < 0.05). Furthermore, BMI of the mothers positively correlated with the head circumference (HC) of infants as well as the specific n-6 PUFA C20:3n-6 over the 3 time points examined. Infant HC was negatively associated with C18:0. CONCLUSION: This study provides additional evidence to the Chinese HBM database, and further knowledge of FA function. It also helps to establish future maternal strategies that support the healthy growth and development of Chinese infants.

건강 정보 추구가 유방암 검진행동에 미치는 영향 연구: 건강신념모형과 자율적 동기를 중심으로 (A Study on the Effect of Info Seeking on Breast Cancer Screening Intention: Focusing on HBM and Autonomous Motives)

  • 구윤희;노기영
    • 디지털콘텐츠학회 논문지
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    • 제19권7호
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    • pp.1381-1387
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    • 2018
  • 본 연구는 전세계적으로 여성암 발병률 1위로 꼽히는 유방암 검진을 활성화하여 질병을 예방하고 조기에 발견할 수 있는 인식 개선 방안을 살펴보기 위해 진행되었다. 유방암 관련 인식을 살펴보기 위해 건강신념모형(HBM)을 활용하였다. 질병 위험 지각, 질병 예방 행동 평가가 질병 관련 정보 추구에 긍정적인 영향을 주고 이러한 정보 추구 행동이 결과적으로 유방암 건강 검진 의도를 강화할 것이라고 추측하였다. 여기에 개인의 가치와 관심에 의한 스스로의 행위 조절을 뜻하는 '자율적 동기'를 추가적으로 살펴보았다. 연구 결과, 유방암을 위험하다고 지각할수록 유방암과 관련한 정보를 보다 적극적으로 찾고 있었다. 유방암 검진을 수행함으로써 얻을 수 있는 이익을 높게 지각할수록 관련 정보를 추구하는 행동 역시 높게 나타났다. 또한 스스로의 행위 조절에 적극적일수록, 즉 자율적 동기가 높을수록 유방암 관련 정보 추구 행동이 강하게 나타났다. 이러한 정보 추구 행동은 다시 건강 검진 의도에 긍정적인 영향을 미쳤다. 즉 유방암 관련 정보를 많이 찾아볼수록 검진을 하겠다는 의도가 높아짐을 확인할 수 있었다.

건강신념모델 기반 중재연구가 당뇨환자의 건강행위와 생리적지표에 미치는 효과를 중심으로 한 체계적 문헌고찰 (A Systematic Review Focused on Health Behavior and Physiological Indicators of Diabetic Patients in Interventional Studies Based on Health Belief Model)

  • 노은영;조윤정;이예원;윤선영
    • Journal of Korean Biological Nursing Science
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    • 제22권1호
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    • pp.1-10
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    • 2020
  • Purpose: Diabetes Mellitus (DM) is a leading cause of death with a prevalence rate of 12.4% in South Korea. Self-management is crucial for patients with DM, because many studies have reported that self-management intervention based on the Health Belief Model (HBM) is effective. The purpose of this study was to investigate the current state of HBM based intervention studies and the components and effects of the theories used in the study for diabetes patients. Methods: A systematic review was conducted using the Pubmed, Cochrane Library and Embase databases from January 2009 to May 2019. We reviewed characteristics of intervention based on the HBM in randomized controlled clinical trials (RCTs), quasi-experimental study intervention. Results: Eight studies published in English between 2009 and 2019 were included in this review. The key components of the health behavior promotion program applied to the DM patients were perceived susceptibility, perceived severity, perceived benefits, perceived barriers and self-efficacy. The intervention based on these components has reported to significantly increase the health behavior change, likelihood of taking health action and improve physiological indicators (HbA1c, and fasting blood sugar etc.). Conclusion: This study highlighted the importance of intervention programs based on the HBM for DM patients.

대학생의 코로나19 감염예방행위에 영향을 미치는 요인: 확장된 건강신념모델과 계획된 행위이론의 적용 (Factors Affecting Practice of COVID-19 Infection Preventive Behaviors in University Students: The Use of the Extended Health Belief Model (HBM) and Theory of Planned Behavior (TPB))

  • 석나영;윤치양;이미숙;전미양
    • 한국학교보건학회지
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    • 제36권1호
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    • pp.9-19
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    • 2023
  • Purpose: The purpose of the study was to identify the factors affecting the practice of COVID-19 infection preventive behaviors in university students focusing on the extended health beliefs model (HBM) and the theory of planned behavior (TPB). Methods: Data was collected from November 1, 2021 to November 30, 2021. The participants were 180 university students at 3 universities. The data was analyzed through the independent t-test, one-way ANOVA, Scheffé test, Pearson's correlation coefficient, and multiple regression by using SPSS/WIN 24.0. Results: In the first stage of hierarchical regression analysis, it was shown that perceived barrier and self-efficacy, among the HBM variables, were significant factors, explaining 18.4% of the infection preventive behaviors (F=7.73, p<.001). In the 2nd stage, it was shown that self-efficacy, among the TPB variables, was a significant factor, explaining 15.3% of the infection preventive behaviors (F=11.80, p<.001). In the 3rd stage, it was shown that perceived barrier and self-efficacy, among the HBM and TPB variables, were significant factors, explaining 18.5% of the infection preventive behaviors (F=6.08, p<.001). Conclusion: When an effective infection preventive behavior program is developed and provided for students to improve their self-efficacy and reduce perceived barrier based on the results, it will contribute to the improvement of infection prevention behaviors among university students.