• 제목/요약/키워드: Physiological model.

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음양기혈대사(陰陽氣血代謝)와 비만(肥滿)의 상관관계 (Correlation between Eum, Yang, Ki and Blood Metabolism and Obesity)

  • 신순식
    • 동의생리병리학회지
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    • 제33권1호
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    • pp.1-9
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    • 2019
  • This paper aims to present a model of obesity and leanness based on eum, yang, ki and blood metabolism of Korean medicine. I analyzed the theory of eum, yang, ki and blood metabolism, yang transforming ki and eum forming the body on Korean medicine, and compared them with energy homeostasis by anabolism and catabolism of modern medicine. In the eum and yang theory, the metabolic process of the human body is dominated by synergism and antagonism between eum force and yang force. When the balance of eum and yang collapses, all the pathological actions of the human body appear, and in the eum and yang metabolic process, an imbalance between yang transforming ki and eum forming the body occurs. The function of yang transforming ki is reduced to ki deficiency, and the function of eum forming the body is increased to blood excess. When blood excess and ki deficiency is given, energy intake increases, energy expenditure decreases, overweight and obesity occur. On the contrary, the function of yang transforming ki is increased to ki excess, and the function of eum forming the body is decreased to blood deficiency. When ki excess and blood deficiency is done, energy intake decreases and energy expenditure increases, the body becomes leanness. When the balance of eum, yang, ki and blood metabolism collapses and becomes blood excess and ki deficiency, overweight and obesity occur, and when ki excess and blood deficiency is done, the body becomes leanness. The energy homeostasis of the human body can be explained by eum, yang, ki and blood metabolism of Korean medicine and it contains the concept of anabolism and catabolism of modern medicine.

Drivers of Crop Productivity and Resource Use Efficiencies in Apple between Western and Eastern States in the US

  • Kim, Soo-Hyung
    • 한국농림기상학회:학술대회논문집
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    • 한국농림기상학회 2015년도 하계 학술발표논문집
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    • pp.18-28
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    • 2015
  • Apple is cultivated under various climatic conditions in many parts of the world. Better understanding of how climate, genotype, soil, and management factors interact to determine crop productivity will improve our ability to optimize crop selection, management strategies, and resource use efficiencies. We developed and applied a physiology-based apple canopy model to evaluate how climatic factors and crop phenotypes interact to determine biomass accumulation, radiation use efficiency (RUE), and water use efficiency (WUE) at multiple production sites between western and eastern states of the US including WA, CA, NY, WV, and PA. Our results indicate that solar radiation is a dominant factor limiting biomass production in the eastern states while VPD is the primary factor governing crop water use across eastern and western states during the peak growing season. Crop RUE and WUE were strongly correlated in the western states but not in the eastern states while VPD showed highly negative correlation with both RUE and WUE across all locations. The RUE improved with increasing fraction of diffuse radiation ($f_{df}$) and the $RUE-f_{df}$ relationships revealed distinctive responses between western and eastern states. Overall, the eastern locations exhibited slightly higher RUE and WUE than the western locations. However, overall productivity and total water use were greater in the western states. A clear decline of productivity with increasing temperature and afternoon VPD past an optimum was predicted in the western locations but this pattern was less clear in the eastern locations. We also discuss potential phenotypes with specific physiological and morphological traits that are differentially suitable for western and eastern locations. Our results provide plausible, spatially explicit explanations and insights to disentangle the complex relationships between crop productivity, resource use efficiencies, phenotype, and climate drivers in apple grown in the US.

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사용자의 스마트 주거 기술 선호와 수용에 관한 연구 (Users' Preference and Acceptance of Smart Home Technologies)

  • 조명은;김미정
    • 대한건축학회논문집:계획계
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    • 제34권11호
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    • pp.75-84
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    • 2018
  • This study analyzed users' acceptance and intention to use in addition to needs and preferences of smart home technologies, and identified the differences in technology preference and acceptance by different factors. The subjects were residents in the 40s and 60s residing in the Seoul or suburbs of Seoul, and questionnaires were conducted in the 40s while interviews with questionnaires were conducted in the 60s. A total of 105 questionnaires were used as data, and frequency, mean, crossover, independent sample t test, one-way ANOVA and multiple regression analysis were performaed using SPSS23. The results of this study are as follows. First, hypertension, hyperlipidemia and hypercholesterolemia were the most common diseases among respondents and if there was no discomfort, they would like to continue living in the homes of the current residence. Therefore, the direction of smart home development should support the daily living and health care so that residents can live a healthy life for a long time in their living space. Second, the technologies that residents most need were a control technology of residential environments and a monitoring technology of residents' health and physiological changes. The most preferred sensor types are motion sensors and speech recognition while video cameras have a very low preference. Third, technology anxiety was the most significant factor influencing intention to accept smart home technology. The greater the technology anxiety is, the weaker the acceptance of technology. Fourth, when applying smart residential technology in homes, various resident characteristics should be considered. Age and technology intimacy were the most influential variables, and accordingly there were differences in technology preference and acceptance. Therefore, a user-friendly smart home plan should be done in the consideration of the results.

CAB: Classifying Arrhythmias based on Imbalanced Sensor Data

  • Wang, Yilin;Sun, Le;Subramani, Sudha
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제15권7호
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    • pp.2304-2320
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    • 2021
  • Intelligently detecting anomalies in health sensor data streams (e.g., Electrocardiogram, ECG) can improve the development of E-health industry. The physiological signals of patients are collected through sensors. Timely diagnosis and treatment save medical resources, promote physical health, and reduce complications. However, it is difficult to automatically classify the ECG data, as the features of ECGs are difficult to extract. And the volume of labeled ECG data is limited, which affects the classification performance. In this paper, we propose a Generative Adversarial Network (GAN)-based deep learning framework (called CAB) for heart arrhythmia classification. CAB focuses on improving the detection accuracy based on a small number of labeled samples. It is trained based on the class-imbalance ECG data. Augmenting ECG data by a GAN model eliminates the impact of data scarcity. After data augmentation, CAB classifies the ECG data by using a Bidirectional Long Short Term Memory Recurrent Neural Network (Bi-LSTM). Experiment results show a better performance of CAB compared with state-of-the-art methods. The overall classification accuracy of CAB is 99.71%. The F1-scores of classifying Normal beats (N), Supraventricular ectopic beats (S), Ventricular ectopic beats (V), Fusion beats (F) and Unclassifiable beats (Q) heartbeats are 99.86%, 97.66%, 99.05%, 98.57% and 99.88%, respectively. Unclassifiable beats (Q) heartbeats are 99.86%, 97.66%, 99.05%, 98.57% and 99.88%, respectively.

Composite genotypes of progestogen-associated endometrial protein gene and their association with composition and quality of dairy cattle milk

  • Kolenda, Magdalena;Sitkowska, Beata;Kamola, Dariusz;Lambert, Barry D.
    • Animal Bioscience
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    • 제34권8호
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    • pp.1283-1289
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    • 2021
  • Objective: The progestogen-associated endometrial protein (PAEP) gene encodes the main whey protein in milk, β-lactoglobulin. The aim of the study was to investigate polymorphism in the PAEP gene and its association with milk yield, composition, and quality. Methods: Test-day records for 782 dairy cows were analysed. A total of 10 single nucleotide polymorphisms (SNP) within the PAEP gene were investigated. The following parameters were recorded: milk yield (MY, kg/d), percent milk fat (%), protein (PP, %), dry matter (DMP, %) and lactose (LP, %), urea content (UC, mg/L) as well as natural logarithm for somatic cell count (LnSCC, ln). Effect on genomic estimated breeding values accuracy was evaluated with pedigree and single step model. Results: Results show that only three SNPs were polymorphic, creating 5 composite genotypes: P1 to P5. Differences in MY between composite genotypes were noted in the two tested herds. Cows with P5 composite genotypes were characterised by the highest PP and LnSCC and the lowest LP and UC (p<0.05). P4 was linked to an increased DMP and UC, while P3 to an increase in LP and decrease in PP and LnSCC. Both factors are important markers in herd management and have high influences on the herds economics. For 5 out of 7 traits the accuracy of prediction was improved by including the haplotype as a fixed effect. Conclusion: Presented results may suggest a new way to optimise breeding programmes and demonstrate the impact of using genomic data during that process.

Anti-inflammatory Effects of Low-frequency Stimulator using Superposition of Alternating Microcurrent Wave in the Animal Models

  • Kim, Yoo-Jeong;Lee, Seong gwang;Go, Shin Jee;An, Suyeon;Kim, Ye eun;Kim, Ye in;Hyun, Kyung-Yae;Cho, Dong Shik;Choi, Go-Eun
    • 대한의생명과학회지
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    • 제27권2호
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    • pp.99-104
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    • 2021
  • Treatment techniques that affect homeostasis by non-invasive regulation in peripheral organs will advance disease research. Here, we demonstrate a non-invasive method of conditioning within an organ using a low-frequency stimulator superposition of alternating microcurrent wave in stages. It is first applied to the inflammatory response in H3N2-infected sinusitis mice. To check the progress of the treatment, mice were sacrificed every week for 3 weeks, nasal tissue was removed, and the inflammatory response was investigated through H & E staining. The low-frequency stimulation treatment group was found to alleviate the proliferation of epithelial cells and invasion of inflammatory cells compared to the control group as the passage of treatment time. The reduction of inflammatory cytokines in the nasal lavage fluid was observed in H3N2-infected sinusitis mice treated with of low-frequency stimulation using superposition of alternating microcurrent wave compared to H3N2-infected sinusitis mice after 3 weeks. These data demonstrate that low-frequency stimulation device in the form of using alternating current wave superposition on within organs provides a new method to regulate specific physiological functions. Therefore, it is necessary to prove the inhibitory effect of low-frequency stimulation using alternating current wave superposition on inflammatory diseases by various methods through further studies and clinical studies.

소건중탕 혼합단미연조엑스의 항염증 및 항위염 효과 (Anti-inflammatory and Anti-gastritis Effect of Sogunjung-tang Mixed Soft Extract)

  • 김명진;최혜민;남원희;김세진;손수미;김정옥
    • 동의생리병리학회지
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    • 제35권6호
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    • pp.235-241
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    • 2021
  • Sogunjung-tang (SGJT) is traditional herbal prescriptions used to treat abdominal pain. In this study, we evaluated the effect on inflammation and gastritis through SGJT formulation development. SGJT composition herbal medicine was boiled in water at 95~100℃ for 3 hours and then concentrated. Sogunjung-tang mix soft extract (STM) was prepared using pharmaceutical excipients such as purified water, sodium benzoate, β-cyclodextrin and CMC-Na. Anti-inflammatory experiment was conducted using STM and lipopolysaccharide (LPS) in RAW 264.7 cells. Cell survival was measured by MTT method. Nitric oxide (NO) was measured using griess reagents, and pro inflammatory cytokines were measured by enzyme-linked immunosorbent assay and RT-PCR. Also, we verified STM validity in acute gastritis using the ICR mouse. STM was administered oral for three days. And 150 mM HCl in 60% ethanol was oral administered 0.5 mL one hour after the last drug administration. Mice were sacrificed 1 hour after 150 mM HCl in 60% ethanol administration. The gastric mucosa was visually observed. STM were not toxic in RAW 264.7 cells. Treatment of STM inhibited the production of NO and inflammatory cytokine at the protein and mRNA levels. Also, in the acute gastritis model with the mouse, the treatment of STM improved gastric mucosal bleeding and edema. In summary, it was confirmed that the treatment of STM exerts anti-inflammatory and anti-gastritis effects. Therefore, we suggest that STM may provide a preclinical evidence for the prevention and treatment of inflammatory and gastritis diseases.

"좋은 의사는 또한 철학자이다" 의사-철학자의 모델 갈레노스를 중심으로 ("The Best Doctor is also a Philosopher" Medicine and Philosophy in Galen)

  • 여인석
    • 의철학연구
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    • 제25권
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    • pp.3-26
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    • 2018
  • 고대세계에서 의학과 철학은 밀접한 관계에 있었다. 소크라테스 이전의 철학자들은 자연학의 일부로 인체에 대한 관심을 갖고 우리 몸의 구성이나 생리적·병리적 현상을 탐구했다. 또 플라톤과 아리스토텔레스는 의학이나 의사, 혹은 질병을 예로 들어 자신들의 철학적 논변을 전개했다. 여기서 철학과 의학은 비유적 차원에서 인간에서 유사한 역할을 하는 두 분야로 설정된다. 그들은 철학은 정념을 제거하여 우리 영혼을 치유하고, 의학은 질병을 제거하여 우리 육체를 치유한다는 점에서 공통적이라고 보았다. 다만 여기서는 의학과 철학의 관계가 유비적 차원에 머물고 있는 문제가 있다. 고대세계에서 의학과 철학의 체계적 결합은 의사-철학자의 전형인 갈레노스를 통하여 전면적으로 이루어졌다. 갈레노스는 의학과 철학의 관련 양상을 그의 글 「좋은 의사는 또한 철학자이다」에서 체계적으로 서술하였다. 갈레노스는 스토아 학파의 철학관을 받아들여 철학을 자연학, 논리학, 윤리학으로 구성된 학문으로 보았다. 따라서 갈레노스에게 좋은 의사는 자연학, 논리학, 윤리학에 정통한 철학자이기도 했다. 그는 의사-철학자의 완벽한 모델을 히포크라테스에게서 찾았다.

Evaluation of Pain Reduction and Clinical Efficacy of Feedback-Controlled Ultrasonic Scaler

  • Min-ju Kim;Hee-jung Lim;Myoung-hee Kim;Young-sun Hwang;Im-hee Jung
    • 치위생과학회지
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    • 제23권2호
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    • pp.176-184
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    • 2023
  • Background: Recently, a piezoelectric ultrasonic scaler based on a feedback control mechanism was introduced for pain relief. This study aimed to investigate the effects of a new ultrasonic scaler in reducing pain and discomfort in adults. Methods: A newly introduced ultrasonic scaler (Master 700®) was used as the test device and a conventional ultrasonic scaler device (PIEZON®) was used as the control device. Forty-one healthy adults visited the dental clinic for dental scaling but did not undergo scaling or periodontal treatment within 6 months. Intraoral examinations were performed before scaling and 3 months later; before scaling, both devices were randomly assigned on the left or right side of each dentition (split-mouth model) and scaling was performed by a registered dental hygienist. The levels of pain and discomfort during scaling were evaluated subjectively and objectively using the visual analog scale (VAS) and physiological monitoring of the heart rate (HR), respectively. Time was measured for each device. Results: All clinical indicators, except bleeding on probing, significantly improved with both devices. The treatment times were 7 minutes, 13 minutes (control) and 6 minutes, 59 minutes (test). VAS scores for pain were 4.89±2.12 (control) and 4.58±2.77 (test) points out of 10; for noise, these were 4.68±2.33 (control) and 4.55±2.55 (test), and for vibration, the values were 4.26±2.0 (control) and 4.18±2.48 (test). HR averages were 72.34±3.39 (control) and 75.97±9.78 (test) beats/min. No statistically significant differences were observed between the devices. Conclusion:The pain, discomfort levels, and scaling time of the new piezoelectric ultrasonic scaler did not differ from those of the conventional device. Further research and development are necessary for more prominent pain-relief effects of scaling devices.

Effect of a Mediterranean-style diet on the exercise performance and lactate elimination on adolescent athletes

  • Gizem Helvaci;Asli Ucar;Mehmet Mesut Celebi;Haydar Cetinkaya;Ayse Zulal Gunduz
    • Nutrition Research and Practice
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    • 제17권4호
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    • pp.762-779
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    • 2023
  • BACKGROUND/OBJECTIVES: Mediterranean diet is an environmentally friendly and healthy diet model. The diet offers many vegetables, fruits, nuts, and olive oil to consumers. In addition, it provides moderate amounts of fish and chicken, smaller quantities of dairy products, red meat, and processed meat. The Mediterranean diet has a high anti-inflammatory and antioxidant content, and it causes many physiological changes that can provide a physical performance advantage. This study examined the effects of a 15-day menu, which was planned using foods with a low acid load within the Mediterranean diet rules, on the exercise performance, lactate elimination, anthropometric measurements, and body composition. SUBJECTS/METHODS: Fifteen professional male athletes between the ages of 13 and 18, who were engaged in ski running, were included in the experimental study. Dietary intervention was applied for 15 days. The athlete performances were evaluated by applying the vertical jump test, hand grip strength, 20 meters shuttle run test, and Borg fatigue scale. After the shuttle run test (every 3 min for 30 min), blood was drawn from the finger, and the lactate elimination time was calculated. Performance and lactate measurements, body analysis, and anthropometric measurements were taken before and after dietary intervention. RESULTS: The vertical jump height and hand grip strength increased after the intervention (P < 0.05). The test duration, total distance, the number of shuttles, and maximum oxygen consumption parameters of the shuttle run test increased (P < 0.05). After the intervention, the athletes' perceived fatigue scores decreased in several stages of the shuttle run test (P < 0.05). The lactate elimination time and athlete's body composition were similar in repeated measurements (P > 0.05). In the last measurements, the upper middle arm circumference decreased while the height of the athletes increased (P < 0.05). CONCLUSIONS: These results show that the Mediterranean diet is a safe and feasible dietary approach for aerobic performance and strength increase.