• Title/Summary/Keyword: Challenge test

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The effects of elimination diet on nutritional status in subjects with atopic dermatitis

  • Kim, Jungyun;Kwon, Jaryoung;Noh, Geunwoong;Lee, Sang Sun
    • Nutrition Research and Practice
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    • v.7 no.6
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    • pp.488-494
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    • 2013
  • A food allergy is an adverse health effect arising from a specific immune response that occurs reproducibly upon exposure to a given food. In those with food allergies that are thought to cause aggravation of eczema, food avoidance is important. The objective of this study was to research the nutritional status of patients with food allergies. A total of 225 subjects diagnosed with atopic dermatitis underwent a skin prick test as well as measurement of serum immunoglobulin E. Food challenge tests were conducted using seven food items: milk, eggs, wheat, soybeans, beef, pork, and chicken. At post-food challenge visits to the test clinic, participants completed a three-day dietary record, which included two week days and one weekend day, in order to evaluate energy intake and diet quality during the challenge. We analyzed nutrient intake based on differential food allergens. Subjects with a food allergy to milk showed lower intake of Ca, Zn, and vitamin B2, and subjects with a food allergy to egg showed lower intake of vitamin A, B1, B2, niacin, and cholesterol. Subjects with a food allergy to wheat and soybean showed lower intake of Ca, P, Fe, K, Zn, vitamin B2, vitamin B6, and niacin; and subjects with a food allergy to beef, pork, and chicken showed lower intake of Fe and higher intake of K, vitamin A, B2. Subjects with atopic dermatitis were lacking in several nutrients, including vitamin A and vitamin C. A greater number of food allergies showed an association with a greater number of nutrient intake deficiencies. Allergen avoidance is the basic treatment for atopic dermatitis. However, when the allergen is food, excessive restriction can lead to nutrition deficiency. Findings of this study suggest the necessity for enhanced nutritional education in order to provide substitute foods for patients with food allergies who practice food restriction.

3D Packaging : Where All Technologies Come Together

  • Kim YC
    • Proceedings of the International Microelectronics And Packaging Society Conference
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    • 2006.02a
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    • pp.139-151
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    • 2006
  • [ $\bullet$ ] 3D is proliferating in all package types $\bullet$ Thin packages challenge all assembly technologies $\bullet$ Package assembly and test are closely coupled and design for testability is imperative to success

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The Controlled Impedance Measurement on the PCB

  • Park, Min-Ju;Lee, Jae-Kyung;Yoon, Dal-Hwan;Min, Seung-Gi
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.113-117
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    • 2003
  • The digital systems include the noise in power supply, ground and packaging due to a simultaneous switching of signal, signal reflections and distortions on single and multiple transmission lines. The requirement for the controlled impedance on a PCB can be both a critical success factor and a design challenge. So, the invented tool simulates the tracks controlled impedance with the test coupon. It can saves the design time and supports the economical PCB design.

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Clinical Perspectives of Food Allergy in Infants and Young Children (영유아 식품알레르기의 임상적 조망)

  • Hwang, Jin-Bok
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.14 no.2
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    • pp.113-121
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    • 2011
  • Food allergies affect 7~8% of infants and young children, and their prevalence appears to have increased in recent years. Food allergy refers to an abnormal immunological reaction to a specific food. These reactions can be recurrent each time the food is ingested. Food allergy manifests itself with a wide spectrum of clinical characteristics including IgE-mediated diseases as immediate reactions, non-IgE-mediated disorders as delayed reactions, and mixed hypersensitivities. As a consequence, the clinical picture of a food allergy is pleomorphic. A well-designed oral food challenge is the most reliable diagnostic test for infants and young children whose clinical history and physical examination point towards a specific food allergy. Food specific IgE antibody tests (RAST, MAST, skin prick test, Uni-CAP, etc) are an alternative tool to determine oral food challenge for IgE-mediated disorders, but not for non-IgE-mediated allergies. Moreover, parents often impose their children on unnecessary diets without adequate medical supervision. These inappropriate dietary restrictions may cause nutritional deficiencies. This review aims to introduce clinical perspectives of food allergy in infants and young children and to orient clinicians towards different strains of diagnostic approaches, dietary management, and follow-up assessment of tolerance development.

Evaluation of Optimal Culture Conditions for Recombinant Ghost Bacteria Vaccine Production with the Antigen of Streptococcus iniae GAPDH

  • Ra, Chae-Hun;Kim, Yeong-Jin;Park, So-Jin;Jeong, Chang-Wha;Nam, Yoon-Kwon;Kim, Ki-Hong;Kim, Sung-Koo
    • Journal of Microbiology and Biotechnology
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    • v.19 no.9
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    • pp.982-986
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    • 2009
  • For the production of ghost bacteria vaccine to prevent the streptococcal disease in aquaculture fish species, a double cassettes vector was constructed and cloned in Escherichia coli DH5${\alpha}$. Ghost bacteria vaccine production from Escherichia coli DH5${\alpha}$/pHCE-InaN-GAPDH-Ghost 37 SDM (SIG) was maximized at a glucose concentration of 1 g/l, agitation of 300 rpm, and aeration of 1 vvm. The maximal efficiency of ghost bacteria formation was obtained at the mid-exponential phase ($OD_{600}=2.0$) with the concentration of 0.77 g/l for SIG. The molecular mass of GAPDH was detected at 67 kDa with the insoluble fraction, by SDS-PAGE and Western blot. The protective efficacy of ghost bacteria vaccine was evaluated by challenge test using olive flounder. The cumulative mortalities of the positive control, formalin-killed cell (FKC) vaccine, and SIG vaccine immunized groups were 91%, 74%, and 57%, respectively. These results suggest that SIG vaccine showed efficacy as a vaccine and had a higher potential to induce protective antibodies than did FKC vaccine.

Study of the ageing of hollow fibers in an industrial module for drinking water production

  • Wang, S.;Wyart, Y.;Perot, J.;Nauleau, F.;Moulin, P.
    • Membrane and Water Treatment
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    • v.4 no.1
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    • pp.53-67
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    • 2013
  • In this study, ageing characteristics of an industrial hollow-fiber membrane module were investigated after 50 months of drinking water production. For this purpose, the industrial module was opened to make 18 smaller modules with hollow-fibers taken from different parts of the industrial module. These modules were probed by the use of a magnetic nanoparticle (NP) challenge test based on magnetic susceptibility (K) measurement of permeate. No magnetic susceptibility was detected in permeate when the challenge test was performed on an intact membrane module, indicating the complete retention of nanoparticles by the membrane. The compromised membrane module can be successfully detected by means of magnetic susceptibility measurement in permeate. So, this study clearly demonstrates that ageing of ultrafiltration membranes can be monitored by measuring the magnetic susceptibility of permeate from an ultrafiltration membrane module. These results showed that the hollow fibers in the center zones of the bundle would age faster than those in the outer zones around the bundle. This result is in agreement with numerical simulation (Daurelle et al. 2011).

Bronchial Hyperresponsiveness in Workers Exposed to Isocyanates (Isocyanates 폭로 근로자들의 기관지 과민성)

  • Choi, Kyeong-Sook;Kim, Kyoo-Sang;Choi, Byung-Soon;Choi, Jung-Keun;Lee, Se-Hui;Moon, Young-Hahn
    • Journal of Preventive Medicine and Public Health
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    • v.29 no.1 s.52
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    • pp.103-112
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    • 1996
  • We studied the association of nonspecific bronchial hyperresponsiveness with general characteristics, exposure concentration, respiratory symptoms, chest x-ray findings, past histories and pulmonary function. We determined bronchial hyperresponsiveness by methacholine challenge test. And we conducted a respiratory symptom questionnaire and performed spirometry on 111 workers occupationally exposed to isocyanates in various industries. About 21.6% of subjects had bronchial hyperresponsiveness. No significant differences were observed between the hyperresponsive and non-responsive group with respect to age, sex, employment period, height, and smoking histories. Cough and breathlessness were significantly associated with the bronchial hyperresponsiveness. The hyperresponsive group had more experience of bronchitis and asthma in the past than the non-responsive group. The lower $FEV_1\;and\;FEV_1%$ were closely related with bronchial hyperresponsiveness. Bronchial hyperresponsiveness seems to be associated with some of respiratory symptoms, past histories and pulmonary function parameters in workers exposed to isocyanates.

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Case Study of Herbal Medicine Treatment for Trimethylaminuria (한약 치료를 시행한 트리메틸아민뇨증 환자 1례 증례보고)

  • Lee, Jung-eun;Han, Seong-jun;Lee, Eom-jee;Lee, Jae-hyung;Nam, Seong-uk;Ha, Na-yeon;Kim, Jin-sung
    • The Journal of Internal Korean Medicine
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    • v.37 no.2
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    • pp.368-373
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    • 2016
  • Objective: This case reports on the efficacy of herbal medicine treatment for trimethylaminuria.Method: A 29-year-old female Korean patient with trimethylaminuria received herbal medicine treatment for three months. We evaluated her symptoms with the methacholine challenge test and OralChroma.Results: The odor intensity shown in the methacholine challenge test demonstrated improvement.Conclusion: Herbal medicine treatment could improve trimethylaminuria symptoms.

A study about CS Unplugged using Unsupervised Learning (비지도 학습을 위한 언플러그드 활동에 대한 연구)

  • Jun, Bungwoo;Shin, Seungki
    • 한국정보교육학회:학술대회논문집
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    • 2021.08a
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    • pp.175-179
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    • 2021
  • Computer Science Unplugged activities are activities to learn about computer science through learning tools other than programming programs. Existing unplugged activities focus on the procedural thinking process and focus on guiding the thinking process through play. There is a lack of research on unsupervised learning, which plays an important role in machine learning, which has recently attracted attention. In this study, we designed and conducted an unplugged activities for unsupervised learning that analyzes data using video media familiar to elementary school students. The results on the effectiveness of the class were analyzed using the bebras challenge. As a result of analyzing the scores of the pre-test and post-test, it was confirmed that the students' computational thinking and problem-solving ability improved.

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DESIGN OF AN UNMANNED GROUND VEHICLE, TAILGATOR THEORY AND PRACTICE

  • KIM S. G.;GALLUZZO T.;MACARTHUR D.;SOLANKI S.;ZAWODNY E.;KENT D.;KIM J. H.;CRANE C. D.
    • International Journal of Automotive Technology
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    • v.7 no.1
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    • pp.83-90
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    • 2006
  • The purpose of this paper is to describe the design and implementation of an unmanned ground vehicle, called the TailGator at CIMAR (Center for Intelligent Machines and Robotics) of the University of Florida. The TailGator is a gas powered, four-wheeled vehicle that was designed for the AUVSI Intelligent Ground Vehicle Competition and has been tested in the contest for 2 years. The vehicle control model and design of the sensory systems are described. The competition is comprised of two events called the Autonomous Challenge and the Navigation Challenge: For the autonomous challenge, line following, obstacle avoidance, and detection are required. Line following is accomplished with a camera system. Obstacle avoidance and detection are accomplished with a laser scanner. For the navigation challenge, waypoint following and obstacle detection are required. The waypoint navigation is implemented with a global positioning system. The TailGator has provided an educational test bed for not only the contest requirements but also other studies in developing artificial intelligence algorithms such as adaptive control, creative control, automatic calibration, and internet-base control. The significance of this effort is in helping engineering and technology students understand the transition from theory to practice.