• Title/Summary/Keyword: Prior-Treatment

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Effects of Different Additives on Fermentation Characteristics and Protein Degradation of Green Tea Grounds Silage

  • Wang, R.R.;Wang, H.L.;Liu, X.;Xu, C.C.
    • Asian-Australasian Journal of Animal Sciences
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    • v.24 no.5
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    • pp.616-622
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    • 2011
  • This study evaluated the fermentation characteristics and protein degradation dynamics of wet green tea grounds (WGTG) silage. The WGTG was ensiled with distilled water (control), or lactic acid bacteria (LAB), enzyme (E), formic acid (FA) and formaldehyde (FD) prior to ensiling. Three bag silos for each treatment were randomly opened at 0, 3, 7, 14, 28 and 60 days after anaerobic storage. For all the treatments, except for FA, there was a rapid decline in pH during the first 7 days of ensiling. LAB treatment had higher lactic acid content, lower ammonia-N ($NH_3$-N) and free-amino nitrogen (FAA-N) contents than other treatments (p<0.05). E treatment had higher lactic acid, water-soluble carbohydrates (WSC) and non-protein nitrogen (NPN) content than the control (p<0.05). FA treatment had higher $NH_3$-N and FAA-N content than the control (p<0.05). FD treatment had lower NPN and FAA-N content than the control, but it did not significantly inhibit the protein degradation when compared to LAB treatment (p>0.05). Results indicate that LAB treatment had the best effect on the fermentation characteristics and protein degradation of WGTG silage.

THE STUDY OF ARCH DIMENSIONAL CHANGES BEFORE AND AFTER ORTHODONTIC TREATMENT IN ANGLE CLASS I MALOCCLUSION CASES (Angle씨 I급 부정교합 환자에서 교정치료 전, 후의 악궁크기 변화에 관한 연구)

  • Jeong, Mi;Ryu, Young Kyu
    • The korean journal of orthodontics
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    • v.20 no.1
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    • pp.183-195
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    • 1990
  • The purposes of present study were to identify possible relationships between post-treatment changes and post-retention changes. The patient's models were composed of 58 samples, and were classified non-extraction group (30 samples) and extraction group (28 samples). For each sample the first models were taken prior to the start of treatment, the second models just after the end of treatment, and the third models two years after. The results were as follows: 1. In the cases of non-extraction group, increases were in intermolar width of maxilla, interbicuspid width of maxilla and arch perimeter of mandible during treatment period, but decreases were in the same measurements during post-retention period. 2. In the cases of extraction group, decreases were in intermolar width of mandible, interbicuspid widths of maxilla and mandible, arch length of mandible, arch perimeters of maxilla and mandible during treatment period. 3. Significant decreases were in the irregularity index of both extraction and non-extraction group during treatment period. 4. There were significant differences of arch dimensional changes in intermolar widths of maxilla and mandible, interbicuspid widths of maxilla and mandible, arch lengths of maxilla and mandible, arch perimeters of maxilla and mandible between non-extraction and extraction group.

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Clinicopathological Studies on the Subclinical Fascioliasis in the Korean Native Cows in Chonnam Area (한우개량단지 소의 간질병에 관한 임상적 연구)

  • 위성하;이정길
    • Korean Journal of Veterinary Service
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    • v.14 no.1
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    • pp.7-12
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    • 1991
  • Fecal samples were taken from 402 cows in Posung, Chonnam where was designated as a place for Korean native cattle breeding. Prevalence of intestinal parasitism were determined by the fecal examinations using the floatation and sedimintation procedures. 62.9% of the cows were found as positive cases with excretion of the eggs of Fasciola hepatica in the fecal specimens. Of those infected with F.hepatica 97 cows free of the pathogenic intestinal parasites were chosen for albendazole treatment. Albendazole tablets(10mg / kg) were administered to the cows twice at the interval of 4 weeks. Blood samples were collected via jugular vein prior to the first treatment. four weeks after the first treatment and four weeks after the second treatment respectively. At the same time fecal samples were collected for parasitological examination by sedimintation methods. The mean treatment count was 44 fluke egg per gram of feces, which compared with 27 EPG and 17 EPG four weeks after the first and second treatment, respectively. Most of the hematological values fluctuated within the normal range during the experiment. Eosinophil counts were high initially, decreased after the first treatment and there after remained steady.

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Applicability of the lenten's Reagent Oxidation to Biological Fixed-Film Process for Reuse of Effluents from the Petrochemical Wastewster Effluent Treatment Plant (석유화학폐수 처리장 방류수의 재이용을 위한 고정생물막 공정에서 Fenton 산화전처리의 적응가능성)

  • Lee, Kyu-Hoon;Kim, Mi-Hwa;Park, Tae-Joo
    • Journal of Environmental Science International
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    • v.4 no.5
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    • pp.115-115
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    • 1995
  • Reuse of industrial effluents through the cooling systems in a petrochemical complex was described. The partial oxidation of the effluents from the biological treatment plant was examined, using Fenton''s reagent as a pretreatment step prior to a next treatment of the effluents. Next tertiary treatment using fixed-film reactor resulted in marked reductions in COD and suspended solids. The continuous fixed-film process with Fenton oxidation pretreatment showed a 23% increase in the COD removal efficiency when compared to that without pretreatment of Fenton oxidation under the volumetric organic loading rate of 0.1 kg COD/m3/day. The Fenton oxidation treatment seemed to be a possible method for tertiary biological treatment to reduce the residual toxicity with the enhanced biodegradation of the effluents.

Applicability of the lenten류s Reagent Oxidation to Biological Fixed-Film Process for Reuse of Effluents from the Petrochemical Wastewster Effluent Treatment Plant (석유화학폐수 처리장 방류수의 재이용을 위한 고정생물막 공정에서 Fenton 산화전처리의 적응가능성)

  • Lee, Kyu-Hoon;Kim, Mi-Hwa;Park, Tae-Joo
    • Journal of Environmental Science International
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    • v.4 no.5
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    • pp.501-508
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    • 1995
  • Reuse of industrial effluents through the cooling systems in a petrochemical complex was described. The partial oxidation of the effluents from the biological treatment plant was examined, using Fenton's reagent as a pretreatment step prior to a next treatment of the effluents. Next tertiary treatment using fixed-film reactor resulted in marked reductions in COD and suspended solids. The continuous fixed-film process with Fenton oxidation pretreatment showed a 23% increase in the COD removal efficiency when compared to that without pretreatment of Fenton oxidation under the volumetric organic loading rate of 0.1 kg COD/m3/day. The Fenton oxidation treatment seemed to be a possible method for tertiary biological treatment to reduce the residual toxicity with the enhanced biodegradation of the effluents.

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Concept Analysis of Parents' Treatment Adherence for an Epileptic Child or Adolescent (뇌전증 아동·청소년 부모의 치료이행 개념분석)

  • Lee, Juna;Yoon, Ju Young
    • Research in Community and Public Health Nursing
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    • v.32 no.2
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    • pp.205-219
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    • 2021
  • Purpose: This concept analysis was conducted to clarify 'parents' treatment adherence for an epileptic child or adolescent'. Methods: The analysis used a hybrid model comprising three phases: theoretical phase, fieldwork phase, and integration phase. In the theoretical phase, fifty studies were reviewed. Interviews with four parents of epileptic children or adolescents were conducted during the fieldwork phase. In the integration phase, the results derived from prior phases were synthesized and clarified. All phases were performed cyclically. Results: The concept, 'parents' treatment adherence for an epileptic child or adolescent' was defined as parents' voluntary and goal-directed behavior towards the epilepsy treatment for their children: a collaborative decision-making process with health-care providers, establishing a support system, adaptability to the treatment plans, and appraisals of the child's health condition. Conclusion: This achievement is thought to contribute to improving the accuracy and validity of the concept measurement. It has implications for additional research on how the concept 'treatment adherence' differs in diverse health problems and other population groups than parents of children and adolescents with epilepsy.

Evaluation of Anti-tarnishing and Corrosion Resistance of Cu-Xwt%Sn Alloy before and After Selective SnO2 Oxide Film according to Potentiostatic Electrolysis Treatment (Cu-Xwt%Sn 합금 위에 선택적 산화막 SnO2 형성 유·무에 따른 내변색 및 내부식특성 평가)

  • Choi, Ji Woong;Kim, Hye Sung
    • Journal of the Korean Society for Heat Treatment
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    • v.34 no.6
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    • pp.265-271
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    • 2021
  • In this study, anti-tarnishing and corrosion characteristics of a single 𝛽1' and Bangjja Yugi alloy in the Cl- ion environment before and after potentiostatic electrolysis treatment were compared. Stable and uniform SnO2 oxide film with several nanometer thickness is formed after potentiostatic electrolysis treatment. In the case of Bangjja Yugi prior to potentiostatic electrolysis (PE) treatment for exposure in Cl- environment, tarnishing occurs rapidly within 0.5hr, whereas PE treated Bangjja Yugi indicates stable surface without tarnishing up to 3hr. Especially, it is noticeable that anti-tarnishing and corrosion characteristic of PE treated single 𝛽1', which were significantly improved by 3 times and 15 times, respectively, compared to conventional Bangja Yugi.

A Study on an Effective Decellularization Technique for a Xenograft Cardiac Valve: the Effect of Osmotic Treatment with Hypotonic Solution (이종 심장 판막 이식편에서 효과적인 탈세포화 방법에 관한 연구; 저장성 용액(hypotonic solution)의 삼투압 처치법 효과)

  • Sung, Si-Chan;Kim, Yong-Jin;Choi, Sun-Young;Park, Ji-Eun;Kim, Kyung-Hwan;Kim, Woong-Han
    • Journal of Chest Surgery
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    • v.41 no.6
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    • pp.679-686
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    • 2008
  • Background: Cellular remnants in the bioprosthetic heart valve are known to be related to a host's immunologic response and they can form the nidus for calcification. The extracellular matrix of the decellularized valve tissue can also be used as a biological scaffold for cell attachment, endothelialization and tissue reconstitution. Thus, decellularization is the most important part in making a bioprosthetic valve and biological caffold. Many protocols and agents have been suggested for decellularization, yet there ave been few reports about the effect of a treatment with hypotonic solution prior to chemical or enzymatic treatment. This study investigated the effect of a treatment with hypotonic solution and the appropriate environments such as temperature, the treatment duration and the concentration of sodium dodecylsulfate (SDS) for achieving proper decellularization. Material and Method: Porcine aortic valves were decellularized with odium dodecylsulfate at various concentrations (0.25%, 0.5%), time durations (6, 12, 24 hours) and temperatures ($4^{\circ}C$, $20^{\circ}C$)(Group B). Same the number of porcine aortic valves (group A) was treated with hypotonic solution prior to SDS treatment at the same conditions. The duration of exposure to the hypotonic solution was 4, 7 and 14 hours and he temperature was $4^{\circ}C$ and $20^{\circ}C$, respectively. The degree of decellularization was analyzed by performing hematoxylin and eosin staining. Result: There were no differences in the degree of decellularization between the two concentrations (0.25% 0.5%) of SDS. Twenty four hours treatment with SDS revealed the best decellularization effect for both roups A and B at the temperature of $4^{\circ}C$, but there was no differences between the roups at $20^{\circ}C$. Treatment with hypotonic solution (group A) showed a better ecellularization effect at all the matched conditions. Fourteen hours treatment at $4^{\circ}C$ ith ypotonic solution prior to 80S treatment revealed the best decellularization effect. The treatment with hypotonic solution at $20^{\circ}C$ revealed a good decellularization effect, but his showed significant extracellular matrix destruction. Conclusion: The exposure of porcine heart valves to hypotonic solution prior to SDS treatment is highly effective for achieving decellularization. Osmotic treatment with hypotonic solution should be considered or achieving decellularization of porcine aortic valves. Further study should be carried out to see whether the treatment with hypotonic solution could reduce the exposure duration and concentration of chemical detergents, and also to evaluate how the structure of the extracellular matrix of the porcine valve is affected by the exposure to hypotonic solution.

Review of Randomized Controlled Trials on Ideal Acupuncture Treatment for Degenerative Knee Osteoarthtritis (RCT논문을 중심으로 한 퇴행성 슬관절염 침구 치료 방법에 대한 고찰)

  • Kim, Eun-Jung;Lee, Seung-Deok;Jung, Chan-Yung;Yoon, Eun-Hye;Jang, Min-Gee;Nam, Dong-Woo;Kim, Hyun-Wook;Lee, Eun-Yong;Kim, Kyung-Ho;Lee, Geon-Mok;Lee, Jae-Dong;Kim, Kap-Sung
    • Journal of Acupuncture Research
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    • v.26 no.2
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    • pp.125-145
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    • 2009
  • Objectives : To analyze the inclusion criteria of participants, control group interventions, and the results of prior studies of acupuncture for OA. Also to identify aspects of the procedure that are associated with positive outcomes in order to establish ideal acupuncture treatment model. And to assess the methodological quality of the trials with modified Jadad score and FEAS in order to evaluate the quality of prior studies and find out whether or not acupuncture has a positive effect in treating OA. Methods : Articles up to the date of November 2008 were searched via computerized databases of PubMed, Journal of Korean Oriental Medicine, The Journal of Korean Acupuncture & Moxibustion Society and Journal of Oriental Rehabilitation Medicine. Bibliographies of reviewed papers were also searched and reviewed. Only randomized controlled trials (RCTs) and systematic reviews concerning the effects of acupuncture or electroacupuncture (EA) on symptoms of osteoarthritis of the human knee, published in English and Korean were included. The acupuncture treatment methods of the reviewed trials were assessed based on STRICTA. And the methodological quality of the trials was assessed by modified Jadad score and FEAS. Results : Twenty one trials of acupuncture for OA were analyzed. Based on the results of this review the following factors might contribute to optimal results from acupuncture treatment. 1) Usage of $ST_{35}$, $GB_{34$, $EX_{32}$, $ST_{36}$ and $SP_9$ acupuncture points. 2) More than four acupuncture points should be used. 3) More than 15 minutes of needle retention time. 4) Needle length-40mm and diameter-0.30mm 5) Usage of EA 6) more than 10 times treatment 7) Treatment frequency of more than once a week, 8) Treatment duration longer than 6 to 8 weeks. Conclusions : High quality clinical trials of Acupuncture for OA is still in lack. Future investigators must concentrate their attentions on the quality of acupuncture treatment itself used in the trials as well as the methodological quality of trials.

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Controlling Factors of Feed Intake and Salivary Secretion in Goats Fed on Dry Forage

  • Sunagawa, K.;Ooshiro, T.;Nakamura, N.;Nagamine, I.;Shiroma, S.;Shinjo, A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.10
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    • pp.1414-1420
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    • 2005
  • The purpose of this research was to determine whether or not feeding induced hypovolemia (decreases in plasma volume) and decreases in plasma bicarbonate concentration caused by loss of $NaHCO_3$ from the blood, act to suppress feed intake and saliva secretion volumes during the initial stages of feeding in goats fed on dry forage. The animals were fed twice a day at 10:30 and at 16:00 for 2 h each time. Prior to the morning feeding, the collected saliva (3-5 kg) was infused into the rumen. During the morning 2 h feeding period (10:30 to 12:30), the animals were fed 2-3 kg of roughly crushed alfalfa hay cubes. At 16:00, the animals were fed again with 0.8 kg of alfalfa hay cubes, 200 g of commercial ground concentrate and 20 g of sodium bicarbonate. In order to compensate for water or $NaHCO_3$ lost through saliva during initial stages of feeding, a 3 h intravenous infusion (17-19 ml/min) of artificial mixed saliva (ASI) or mannitol solution (MI) was begun 1 h prior to the morning feeding and continued until the conclusion of the 2 h feeding period. The physiological state of the goats in the present experiment remained unchanged after parotid gland fistulation. Circulating plasma volume decreases caused by feeding (estimated by increases in plasma total protein concentration) were significantly suppressed by the ASI and MI treatments. During the first 1 h of the 2 h feeding period, plasma osmolality in the ASI treatment was the same as the NI (non-infusion control) treatment, while plasma osmolality in the MI treatment was significantly higher. In comparison to the NI treatment, cumulative feed intake levels for the duration of the 2 h feeding period in the ASI and MI treatments increased markedly by 56.6 and 88.3%, respectively. On the other hand, unilateral cumulative parotid saliva secretion volume following the termination of the 2 h feeding period in the ASI treatment was 50.7% higher than that in the NI treatment. MI treatment showed the same level as the NI treatment. The results of the present experiment proved that the humoral factors involved in the suppression of feeding and saliva secretion during the initial stages of feeding in goats fed on dry forage, are feeding induced hypovolemia and decrease in plasma $HCO_3^-$ concentration caused by loss of $NaHCO_3$ from the blood.