• Title/Summary/Keyword: swelling test

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Maintenance of Sperm Characteristics and In vitro Developmental Rate of Embryos against Oxidative Stress through Antioxidants in Pig

  • Jang, H.Y.;Kong, H.S.;Oh, J.D.;Park, B.K.;Yang, B.K.;Jeon, G.J.;Lee, H.K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.3
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    • pp.340-345
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    • 2008
  • Oxidative stress is one of the major causes of failure of in vitro storage of boar semen. Reactive oxygen species (ROS) are one of the important mediators of oxidative stress during in vitro storage of boar semen. Our study examined the effects of taurine on sperm characteristic and on in vitro developmental embryos during in vitro storage of boar semen for 7 days. Semen was randomly aliquoted into 3 centrifuge tubes and treated with different concentrations of taurine (25-100 mM). The characteristics of boar sperm were analyzed for motility by light microscopy, viability by using a Makler counting chamber and membrane integrity by a hypoosmotic swelling test (HOST). The percentages of motile spermatozoa in taurine groups after 5 days were significantly higher compared to the control. Sperm viability in the control was lower than in taurine groups after 7 days irrespective of different taurine concentration. In the hyoosmotic swelling test (HOST), significantly higher results were obtained in taurine groups after 3 days. Also, the developmental rates of IVM/IVF porcine embryos from semen treated with pyruvate and taurine were significantly increased when compared with the control (p<0.05). These results indicate that supplementation of taurine as an antioxidant in boar semen extender can improve the semen quality.

Adverse Events Following Immunizations in Infants Under 1 Year of Age in Lorestan Province, Western Iran

  • Anbari Khatereh;Ghanadi Koruosh;Toulabipour Alireza;Jamebozuorghi Daryuosh;Baharvand Parastoo
    • Journal of Preventive Medicine and Public Health
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    • v.56 no.2
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    • pp.172-179
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    • 2023
  • Objectives: Vaccination is an important intervention for preventing disease and reducing disease severity. Universal vaccination programs have significantly reduced the incidence of many dangerous diseases among children worldwide. This study investigated the side effects after immunization in infants under 1 year of age in Lorestan Province, western Iran. Methods: This descriptive analytical study included data from all children <1 year old in Lorestan Province, Iran who were vaccinated according to the national schedule in 2020 and had an adverse event following immunization (AEFI). Data were extracted from 1084 forms on age, sex, birth weight, type of birth, AEFI type, vaccine type, and time of vaccination. Descriptive statistics (frequency, percentage) were calculated, and the chi-square test and Fisher exact test were used to assess differences in AEFIs according to the abovelisted variables. Results: The most frequent AEFIs were high fever (n=386, 35.6%), mild local reaction (n=341, 31.5%), and swelling and pain (n=121, 11.2%). The least common AEFIs were encephalitis (n=1, 0.1%), convulsion (n=2, 0.2%), and nodules (n=3, 0.3%). Girls and boys only showed significant differences in mild local reactions (p=0.044) and skin allergies (p=0.002). The incidence of lymphadenitis (p<0.001), severe local reaction (p<0.001), mild local reaction (p=0.007), fainting (p=0.032), swelling and pain (p=0.006), high fever (p=0.005), and nodules (p<0.001) showed significant differences based on age at vaccination. Conclusions: Immunization is a fundamental public health policy for controlling vaccine-preventable infectious diseases. Although vaccines such as the Bacillus Calmette-Guérin vaccine, oral poliovirus vaccine, and pentavalent vaccine are well-researched and reliable, AEFIs are inevitable.

Characteristics of Vitrification Process for Mixture of Simulated Radioactive Waste Using Induction Cold Crucible Melter (유도가열식 저온용융로를 이용한 혼합모의 방사성폐기물의 유리화 공정 특성)

  • 김천우;양경화;박병철;박승철;황태원;박종길;신상운;하종현;송명재
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.2 no.3
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    • pp.165-174
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    • 2004
  • In order to simultaneously vitrify the ion exchange resin(IER) and combustible dry active waste(DAW) generated from Korean nuclear power plants, a vitrification pilot test was conducted using an induction cold crucible melter(CCM) . The energy necessary for startup of the glass using a Ti-ring was evaluated as about 290 kWh. The power supplied from a high frequency generator to melt the glass properly was ranged from 160 to 190 kW without any interruption. When the mixture of the IER and DAW was fed into the CCM, the concentration of CO was lowered up to 1/40 compared to feeding the IER solely. It may be caused by the DAW which can produce about 1.8 times higher heat compared to the IER. When the swelling phenomenon occurred in the glass melt, the concentration of $NO_2$, oxidizing gas, was higher than NO, reducing gas. Total feed amounts of the IER and DAW were 368 and 751 kg, respectively. And then, about 74 of volume reduction factor was achieved.

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The Experimental Study on the Effects of Hyangbujapalmultang on Anti-stress and Immune Response in Immobilization Stressed Rats (향부자팔물탕(香附子八物湯)이 구속(拘束)스트레스 흰쥐의 항(抗)스트레스와 면역반응(免疫反應)에 미치는 영향(影響))

  • Lee Seung-Gi;Kim Jong-Woo;Whang Wei-Wan
    • Journal of Oriental Neuropsychiatry
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    • v.8 no.1
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    • pp.81-93
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    • 1997
  • In order to investigate the anti-stress effect of Hyangbujapalmultnag in immobilization stress rats, the change of body weight, and, the humoral and cellular immune response were measured.The following results were obtained.1. The decrease of the body weight was significantly inhibited in test group, comparing with the control group.2 In the plaque fomation test, the number of the plaque in the control group was decreased but, the decreased in test group was significantly inhibited, comparing with the control group.3. In the hemagglutination titer, the control group was decreased on the serum antibody titer, but, the decreased in test group was significantly inhibited, comparing with the control group.4. In the footpad swelling response, the differences between the control and test group were not shown.

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Physicochemical Properties and Sugar-Snap Cookie Making Potentialities of Soft Wheat Cultivars and Lines (Triticum aestivum L. em Thell.) (연질밀(Triticum aestivum L. em Thell.)의 이화학적 특성과 sugar-snap cookie의 제조적성)

  • Lee, Yong-Suk;Kim, Jong-Goon;Won, Joon-Hyung;Chang, Hak-Gil
    • Korean Journal of Food Science and Technology
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    • v.34 no.5
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    • pp.846-855
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    • 2002
  • Several soft white spring and winter wheat cultivars were evaluated by analyzing physicochemical properties such as Single Kernel Characterization System (SKCS), milling properties, Rapid Visco-Analyzer (RVA), mixograph pattern, and sugar-snap cookie-making potentialities. Results of SKCS revealed kernel hardness had a positive correlation coefficient with test weight $(r=0.497^{*})$ and near-infrared reflectance (NIR) hardness $(r=0.495^{*})$. SKCS kernel weight had a significantly high correlation of $r=0.942^{**}$ with SKCS kernel size. The test weight had significantly high correlations with straight-grade flour yield $(r=0.720^{**})$, break flour yield $(r=0.490^{*})$, flour ash content $(r=-0.781^{**})$, and milling score $(r=0.838^{**})$. The average RVA peak viscosity of the soft white winter wheat was higher (195.1 unit) than the soft white winter wheat varieties (135.7 unit). A correlation was found between RVA peak viscosity and swelling volume. Significant correlation coefficients were obtained among cookie properties, milling properties, protein content, and mixograph absorption. The cookie top grain score had a correlation coefficient of $r=0.447^{*}$ with swelling volume.

Engineering properties of expansive clayey soil stabilized with lime and perlite

  • Calik, Umit;Sadoglu, Erol
    • Geomechanics and Engineering
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    • v.6 no.4
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    • pp.403-418
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    • 2014
  • There are around 6700 millions tons of perlite reserves in the world. Although perlite possesses pozzolanic properties, it has not been so far used in soil stabilization. In this study, stabilization with perlite and lime of an expansive clayey soil containing smectite group clay minerals such as montmorillonite and nontronite was investigated experimentally. For this purpose, test mixtures were prepared with 8% of lime (optimum lime ratio of the soil) and without lime by adding 0%, 10%, 20%, 30%, 40% and 50% of perlite. Geotechnical properties such as compaction, Atterberg limits, swelling, unconfined compressive strength of the mixtures and changes of these properties depending on perlite ratio and time were determined. The test results show that stabilization of the soil with combination of perlite and lime improves the geotechnical properties better than those of perlite or lime alone. This experimental study unveils that the mixture containing 30% perlite and 8% lime is the optimum solution in stabilization of the soil with respect to strength.

A Study on the Aging Characteristics of NEPE Propellants (NEPE 추진제의 노화 특성에 관한 연구)

  • 류백능;박명규;박영철
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 1996.05a
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    • pp.141-146
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    • 1996
  • ABSTRACT : The aging characteristics of NEPE propellant is studied by HPLC analysis, cube crack test, swelling, and mechanical property test. The depletion of mixed stabilizer NMAI2-NDPA is analysed by Berthelot's law. The stabilizer NMA was completely comsumed after 16 weeks at $70{\circ}$ and after 6 weeks at $80{\circ}$ and the cracks developed in the sample. The aging trend of the propellant was shown hardening phenomena in the range of 20-$60{\circ}$ due to evaporation of energetic plasticizers.

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Measurement of Mechanical Properties and Constitutive Modeling of Woods (목재 물성 측정 및 변형 예측 모델 개발)

  • Kim, K.W.;Kim, D.H.;Kim, M.S.;Ko, Y.J.;Ha, B.K.;Kim, H.S.;Kim, J.H.
    • Transactions of Materials Processing
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    • v.27 no.6
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    • pp.363-369
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    • 2018
  • This study measured the mechanical properties of an ash wood under various temperature and humidity conditions and a finite element model was developed to predict the behavior of the wood. A humidity-controlled chamber was developed and used for measuring the dimensional changes of woods under various humidity conditions. The thermal expansion coefficient and the elastic stiffness constants were measured by using a thermal chamber and the three-point bending test along the three principal axes of the wood. A constitutive model was proposed to describe the moisture content and temperature dependent behavior of wood. The proposed model was validated for the warping test of a wood plate. The warping of the plate was calculated using the finite element method. The calculated amount of warping was in consistence with the measurements.

Pregnancy Diagnosis for Improvement of Reproductive Efficiency in Farm Animals (가축번식효율 증진을 위한 임부진단방법)

  • 정영채
    • Korean Journal of Animal Reproduction
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    • v.7 no.2
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    • pp.8-26
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    • 1983
  • Various early pregnancy diagnostic methods have been developed in order to improve the reproductive efficiency in cow, mare, mule, sow, sheep, goat, dog, cat, rabbit, buffalo, camel, elephant, monkey, deer, lion, coipus and guinea pig. These methods include abdominal swelling, abdominal palpation, esturs cylce detection, Lupin test, gonadotropin assay, colostrum injection test, sperm motility assessment, cervical mucus viscosity test, Kaber chromagens method, estrogen test, A Scheim-Zond다 test, spectrophotometric detection of estrogen in urine and feces, boric acid crystraline formation test in urine, oxytocin injection test, diamino-oxidase test, PMSG HA test, behaviour test, Simolus iodine detection test, detection of tryptophane in urine, x-ray method, Cuboni and Lunaas method, vaginal biopsy method, Friedmann Schneider diagnostic method, electrode method, barium chloride detection method, ECG, Doptone method, ultrasound method, ultrasound scanning method, LDH method, rectal palpation method, CL palpation method, radioautography, serum creatine test, serum globulin test, chlormadine method, CAP method, Medata Do, pp.ers method, body fluid test, Plasma oCS detection method, ERIA, LHRH method, negative latex cogulation test and oestrone sulphate detection method. The most reliable methods with high a, pp.icability to farm animals such as sheep, mare, sow and cow are rectal palpation, ultrasound method and hormonal assay in blood and milk. However, they require complicated laboratory works for the early diagnosis of pregnancy and in most cases, the simple and economical methods which are described up to now need a long period of time after conception. Generally, it is possible to detect pregnancy after one estrus cycle, even though it varies depending on the species of animals. For improvement of the reproductive efficiency, it is required to develop a more accurate, economical, simple and early detectable method. It is anticipated that the result of a study on the detection method of EPF(early pregnancy factor) would be a, pp.icable to various animals within 6 hours after conception.

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Analgesic and anti-inflammatory effect of the aqueous extract of Angelica dahurica

  • Choi, In-Ho;Song, Yun-Kyung;Lim, Hyung-Ho
    • The Journal of Korean Medicine
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    • v.29 no.2
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    • pp.32-40
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    • 2008
  • Background: Angelica dahurica has been used in various clinical cases. Its taste is hot and its property is warm, dry and nonpoisonous. Its efficacy is to remove wind-damp, cure swelling and edema, exhaust pus, stop itching, rhinitis and leukorrhea. Object: To test through experiment Angelica dahurica's analgesic and anti-inflammatory efficacy. Method: Inject acetic acid as a pain-inducing substance to the mice and measure visceral pain bywrithing reflex. Inject carrageenan that is an edema-inducing substance to the rat's paw and measure volume of edema. Take thermal pain to mice with plantar test and measure paw withdrawal latency. Normal group is non Angelica dahurica-treated group and treated group is Angelica dahurica-treated group. Results: In acetic acid-induced visceral model, treatment with Angelica dahurica suppressed writhing reflex significantlyand dose-dependently. In carrageenan-induced paw edema model, treatment with Angelica dahurica suppressed carrageenan-induced paw edema. In plantar test model, no significant effect on the withdrawal latency of thermal stimulation-induced nociception was observed. Conclusion: Angelica dahurica has analgesic and anti-inflammatory efficacy.

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