• Title/Summary/Keyword: taste sensitivity

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Taste Sensitivity and Changes in Taste Intensity with the Addition of MSG (맛에 대한 감도와 MSG 첨가에 따른 맛의 강도 변화)

  • Koo, Nan-Sook
    • Korean Journal of Human Ecology
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    • v.7 no.1
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    • pp.197-203
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    • 1998
  • The recognition thresholds of sucrose, NaCl, citrate, caffeine, and MSG solution were determined and the effects of MSG on four basic tastes were also investigated by the sensory evaluation. The recognition threshold of sucrose was 0.451%, NaCl 0.01%, caffeine 0.005%, citrate 0.004%, and MSG 0.033%. When MSG was added to 10% sucrose solution, the intensity of sweetness significantly decreased by 0.8% MSG. The sweetness of sucrose indicated the decreasing tendency according to the addition of MSG. When MSG was mixed with NaCl solution, the intensity of saltiness significantly increased. With an addition of MSG to the citrate solution, sourness was suppressed. The bitterness increased slightly in a caffeine solution when mixed with MSG.

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Self-care Through Dynamic Appetite Alteration: A Grounded Theory Study of Patient Experience on Maintenance Hemodialysis

  • Wonsun Hwang;Ji-hyun Lee;Juha Nam;Jieun Oh;Inwhee Park;Mi Sook Cho
    • Clinical Nutrition Research
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    • v.11 no.4
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    • pp.264-276
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    • 2022
  • Hemodialysis (HD) patients can experience appetite alterations that affect meals and nutritional status. Few qualitative studies have assessed the chronic impact of HD on the everyday diet. This study aimed to characterise comprehensively the experiences of HD patients adapting to appetite alteration. Semi-structured, face-to-face interviews were conducted in a unit of a tertiary hospital to understand patient experiences with appetite alteration. An interview guide was used to consider adaptive processes developed after reviewing the literature and based on the researchers' clinical experiences. A single researcher conducted all interviews to maintain consistency in data collection. The interview content was analysed using Nvivo 11 based on grounded theory and constant comparison analysis. As a results, the mean age and HD vintage of 14 participants were 60 and 5.8 years, respectively. We developed a self-care model based on HD patient experiences with appetite alteration based on axial and selective coding. Differences in urea sensitivity, taste alteration, and social support could be explained by timing of transitions, life events, and responses to stress. Self-care processes are adapted through the processes of "self-registration" and "self-reconstruction," starting with "disruption." At the stage of adjustment, 4 self-management types were derived based on pattern of self-care: self-initiator, follower, realist, and pessimist. The results of this study provide unique qualitative insight into the lived experiences of HD patients experiencing appetite alteration and their self-care processes. By recognising dietary challenges, health teams can better support HD patients in the transition from dietary education to self-care.

The factor of sensory processing that affect on the motor and process skill of children with cerebral palsy (뇌성마비 아동의 운동 및 처리기술에 영향을 미치는 감각처리 요인)

  • Park, Myoung-Ok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.10
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    • pp.221-227
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    • 2016
  • This study was conducted to identify sensory processing factors that affect motor and process skills of children with cerebral palsy. A total of 36 children with cerebral palsy who attended at the J pediatric development center and the N rehabilitation hospital in Seoul participated. Pearson's correlation coefficients were used to test the relationship between motor skills, process skills and sensory processing abilities of children. Moreover, hierarchical multiple regression was used to identify the sensory processing factors influencing motor and process skills. Motor skills of children with cerebral palsy were correlated with auditory filtering, low energy/weakness, and visual/auditory sensitivity of sensory processing items, whereas process skills were correlated with tactile sensitivity and taste/smell sensitivity. The hierarchical regression model for motor skills revealed movement sensitivity, auditory filtering, and low energy/weakness as significant factors influencing sensory processing items. However, no factors were shown to influence process skills. The results of this study will be useful as a basic resource for rehabilitation of children with cerebral palsy. However, further studies evaluating a larger population should be conducted to verify the results presented herein.

Comparison Before and After the Application of the Computerized Cognitive Rehabilitation Program(CoTras-C) for Children with Cerebral Palsy (뇌병변 장애 아동의 아동용 전산화 인지재활 프로그램(CoTras-C) 사용 전·후 비교)

  • Park, So-Won
    • Journal of The Korean Society of Integrative Medicine
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    • v.9 no.3
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    • pp.9-18
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    • 2021
  • Purpose : In this study, we applied a computerized cognitive rehabilitation program (CoTras-C) for children with cerebral palsy. Research was conducted to investigate the impact of upper limb function, sensory function, and activities of daily living. Methods : The study period lasted 10 weeks from October 2019 to December 2019. The study subjects were 12 subjects according to the selection criteria, and a computerized cognitive rehabilitation program (CoTras-C) was conducted twice a week for 30 minutes before and after the application of basic occupational therapy. Results : As a result of the computerized cognitive rehabilitation program, scores of upper limb function (QUEST), sensory function (SSP-2), and daily life activity (WeeFIM) were significantly improved (p>.05). From the result of examining the motor area, improvement in fine-motor function and protective extension through touch pad or controller operation was found. It also showed improvement in activities of daily living including motor and activities of daily living including social cognition. In the sensory function evaluation, it was not significant in movement sensitivity. Significant differences were shown in the items excluding olfactory/taste sensitivity. Conclusion : The application of the computerized cognitive rehabilitation program (CoTras-C) showed significant results in upper limb function, sensory function, and daily life activities of children with brain lesions. Based on these results, future studies need to generalize the study by expanding the age or population of children with brain lesions, or by expanding the diversity of diseases and environments.

Genetic Polymorph isms and Haplotype Analysis of Sweet Taste Receptor TAS1R2 Gene in the Korean Population (한국인의 단맛수용체유전자 TAS1R2 다형성분석 및 일배체형 연구)

  • Lee, Hye-Jin;Bae, Jae-Woong;Kwon, Tae-Jun;SaGong, Bo-Rum;Kim, Un-Kyung
    • Journal of Life Science
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    • v.20 no.3
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    • pp.462-465
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    • 2010
  • Sweetness plays an important role in providing calories and promoting appetite for food. Since it has been known that genetic factor(s) is involved in individual differences in taste sensitivity in humans, this study aimed to examine genetic variations of the TAS1R2 gene, one of the components for tasting sweet compounds, by using DNA sequencing analysis from 98 unrelated Korean subjects. As a result, 12 different single nucleotide polymorphisms (SNPs) were identified in the hTAS1R2 gene and most of them were nonsynonymous. Also, two novel SNPs were found for the first time in this study. It was noted that the frequencies of these SNPs were common in the Korean population. 20 different haplotypes with coding SNPs (cSNPs) were also found in this study. Three out of these haplotypes were common, showing frequencies of > 10%. The repertoire and frequencies of cSNPs and haplotypes in the hTAS1R2 gene will provide information that will help identify a functional ligand receptor common in the Korean population.

Frey Syndrome after Retromandibular Approach for Condyle Fracture Reduction (하악과두골절 수술 후 발생한 Frey Syndrome)

  • Lee, Jae-Min;Ki, Eun-Jung;Cheon, Hae-Myung;Choi, Moon-Gi
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.6
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    • pp.376-380
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    • 2013
  • Frey syndrome is a disease characterized by abnormal sweating, facial redness, and rare pain by stimulation of taste sense on the limited area dominated by the auriculotemporal nerve and great auricular nerve. Although the developmental mechanism and histopathologic cause of Frey syndrome are still being debated, the most reliable theory is based on injury of the parathympathetic nerve connected to the auriculotemporal nerve continuing to abnormal regeneration. The other theory is that the sweat glands develop an increased sensitivity after degeneration of sympathetic fibers. Therapy of Frey syndrome includes drugs, radiographic treatment, and surgical treatment; however, in most cases, treatment is not satisfactory. This is a case report on a 24-year-old male patient with Frey syndrome caused by the fracture reduction with retromandibular approach after multiple facial traumas and spontaneous healing without any special treatment.

Soundscapes of Soswaewon Represented in Kim In-Hu's 48 Poems (김인후의 48영에 표상된 소쇄원의 소리풍경)

  • Han, Myung-Ho;Cheon, Deuk-Youm
    • Journal of architectural history
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    • v.24 no.6
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    • pp.21-33
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    • 2015
  • This study aims to rediscover the meaning and value of Soswaewon construction represented in Kim In-Hu's 48 poems on the basis of the concept and idea of soundscape. It classified the landscape resources through the various emotional elements such as the sense of sight, hearing, smell, touch, taste, and warmth described in the 48 poems of Soswaewon, and also interpreted the meaning and value of Soswaewon construction. Appreciating various sounds of Soswaewon, Kim In-Hu understood a sound as an important element of the landscape. Also, he abundantly wrote down the interesting changes of Soswaewon which vary depending on time or seasons. The 48 poems contain the scent and feel of Soswaewon as well as the soundscapes which can be heard with ears. A variety of sounds heard in Soswaewon are the whole senses which are combined with the chill of Soswaewon, the fragrance of trees and the mystery of the mountain, etc, and they mean the wider world much more than the value of physical sounds. Soundscapes of Soswaewon are becoming an emotional space which intactly conveys not only the musical inspiration but also the scent of life to us.

ASIC2a-dependent increase of ASIC3 surface expression enhances the sustained component of the currents

  • Kweon, Hae-Jin;Cho, Jin-Hwa;Jang, Il-Sung;Suh, Byung-Chang
    • BMB Reports
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    • v.49 no.10
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    • pp.542-547
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    • 2016
  • Acid-sensing ion channels (ASICs) are proton-gated cation channels widely expressed in the nervous system. Proton sensing by ASICs has been known to mediate pain, mechanosensation, taste transduction, learning and memory, and fear. In this study, we investigated the differential subcellular localization of ASIC2a and ASIC3 in heterologous expression systems. While ASIC2a targeted the cell surface itself, ASIC3 was mostly accumulated in the ER with partial expression in the plasma membrane. However, when ASIC3 was co-expressed with ASIC2a, its surface expression was markedly increased. By using bimolecular fluorescence complementation (BiFC) assay, we confirmed the heteromeric association between ASIC2a and ASIC3 subunits. In addition, we observed that the ASIC2a-dependent surface trafficking of ASIC3 remarkably enhanced the sustained component of the currents. Our study demonstrates that ASIC2a can increase the membrane conductance sensitivity to protons by facilitating the surface expression of ASIC3 through herteromeric assembly.

The Analysis of Body-Image on the On-Line Game Lineage II Character Fashion (온라인 게임 리니지II 캐릭터 패션에 나타난 바디 이미지 분석(分析))

  • Jin, Kyung-Ok;Seo, Jung-Lip
    • Journal of Fashion Business
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    • v.8 no.5
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    • pp.144-154
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    • 2004
  • The purpose of this study is to consider the characteristics of character's body-image throughout the on-line games and with this study we researched the symbolic meaning reflected by the character's body-images throughout the fashion. The characteristics of the body-images presented in modern fashion is expressed in 4 features on Lineage II game. First, it adopts the ways in which modern fashion expresses the erotic image and represents various sexual stimulation, which can not be represented in the real world, in cyberspace. Second, it expresses the beauty and taste in sensitivity by exchanging the items, which are the features of body-image, each other as the neutral body-image and pursuits for the double side feature between males and females by dismantling the point of view to sex. Third, it shows the new value system different from the existing one by using extraordinary items and materials that you've never seen in real fashion as the abnormal body-image expressed in informal and inaccurate principal of deformation. Fourth, it show the body with the items which induces more interest and curiosity than the real world do as the humorous body-image accompanying with childish amusement and pleasure.

NOx Gas Detecting Properties of the Nitrocellulose/MWCNT Thin Film Coated on the Glass Substrate (유리 기판 위에 제작된 Nitrocellulose/MWCNT 박막의 질소가스 검출특성)

  • Lee, Won Jae;Choi, Myung Kyu;Jang, Kyung Uk
    • Journal of the Semiconductor & Display Technology
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    • v.11 no.1
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    • pp.55-59
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    • 2012
  • NOx is one of the toxin gases, which is mainly causing the optic-chemical smog phenomena, and decreasing in the function of nose and taste. Especially, NO is easily reacting with $O_3$, and then becoming the $NO_2$. $NO_2$ is mainly causing the acidulation rain. So, we should develop the NOx gas sensing system to detect NOx gas. In this paper, we present the microstructure and the NOx gas detecting properties of the nitrocellulose/MWCNT thin film coated by the air-spray on the glass substrate. The nitrocellulose/MWCNT-based gas sensors have been studied detecting NOx molecules of a ppm-level at the temperature range of $30{\sim}120^{\circ}C$. The resistance of the sensors decreases when the sensors are exposed to NOx gas. As a results, we obtained the nitrocellulose/MWCNT sensors with the sensitivity of 0.6%/sec under the 0.8 ppm of NOx gas concetration. Also, we get the activation energy of 0.202eV from the sensor for the 0.3 ppm of NOx gas concentration.