• Title/Summary/Keyword: PSE

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CLINICAL STUDY OF SURGICALLY ASSISTED RAPID MAXILLARY EXPANSION (외과적 술식을 동반한 급속 상악 확장술의 임상 연구)

  • Yang, Chan-Young;Min, Seung-Ki;Oh, Sung-Hwang;Kwon, Kyung-Hwan;Lee, Jun;Cha, Jae-Won
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.31 no.1
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    • pp.60-69
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    • 2005
  • Orthopedic rapid maxillary expansion(RME) has been a common treatment modality used to widen narrow maxillae in young children. However, since more skeletally matured adolescents or adults has closed midpalatal suture, the result of RME was undesirable because of dental tipping with little or no basal skeletal movement and resulted to many other complications. After such treatment, complications often occurred such as alveolar bending, compression of periodontal ligament, extrusion, buccal tipping, and severe relapse. Thus, surgically assisted rapid maxillary expansion(SA-RME) is required, especially for patients over 14 years old, to skeletally release maxillary expansion. We used two methods of maxillary expansion surgery. Surgically assisted rapid maxillary expansion(SA-RME) & surgically assisted posterior segmental expansion(SA-PSE) were used for narrow maxilla. The study was divided into two groups(SA-RME group and SA-PSE group). SA-RME group was consisted of 2 males and 4 females, and the ages of materials ranged from 15 years to 25 years with a mean of 20.2 years. SA-PSE group was consisted of 1 male and 5 females, and the ages ranged from 13 years to 23 years with a mean of 18.7 years. Dental study models were fabricated before starting the expansion and immediately after the expansion was completed. It was fabricated again 1 month later, 3 months later when the expansion device was removed, and 6 months later after the expansion was completed. A repeated measures analysis of variance(ANOVA) test was applied to assess changes between each groups over time. The amount of expansion and the amount of tipping movement each in both groups were compared by using paired t-test and it was also compared between each subjects within the group by using independent t-test. Both SA-RME and SA-PSE group showed stable results, but SA-PSE group showed statical significance in tipping movement of second premolar. We compared 6 patients who recieved SA-RME with 6 patients who received SA-PSE, and appraised the clinical usefulness.

A Study for Reliability Improvement of Passenger Service Equipment using Failure Analysis (고장 분석을 통한 승객서비스 장치의 신뢰성 향상방안 연구)

  • Roh, Bumtaek;Chung, Kwangwoo
    • Journal of the Korean Society for Railway
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    • v.19 no.5
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    • pp.609-616
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    • 2016
  • The Passenger Service Equipment(PSE) provide various train operation data such as flag station data. When PSE incur service failures or errors, passengers who use the train feel great inconvenience. In this paper, I have chosen PSE that were important to passengers and have applied Reliability Centered Maintenance(RCM), deviating from the existing perspective that operators have taken to perform RCM. FMEA/FMECA was performed for reliability analysis of the PSE. The highly critical device among the PSE is defined as the Passenger Information Control System(PICS), which is used to control the automatic announcement and signaling board. Through Weibull distribution of the PICS, failure analysis was performed. Based on the analyzed results, I have proposed a solution that will minimize service failure of PICS.

In-transit development of color abnormalities in turkey breast meat during winter season

  • Carvalho, Rafael H.;Honorato, Danielle C.B.;Guarnieri, Paulo D.;Soares, Adriana L.;Pedrao, Mayka R.;Oba, Alexandre;Paiao, Fernanda G.;Ida, Elza I.;Shimokomaki, Massami
    • Journal of Animal Science and Technology
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    • v.60 no.1
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    • pp.30.1-30.10
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    • 2018
  • Background: The poultry industry suffers losses from problems as pale, soft and exudative (PSE), and dark, firm and dry (DFD) meat can develop in meat as a result of short- and long-term stress, respectively. These abnormalities are impacted by pre-slaughter animal welfare. Methods: This work evaluated the effects of open vehicle container microclimate, throughout the $38{\pm}10km$ journey from the farm to the slaughterhouse, on commercially turkey transported during the Brazilian winter season. The journey was initiated immediately after water bath in truck fitted with portable Kestrel anemometers to measure air ventilation, relative humidity, temperature and ventilation. Results: The inferior compartments of the middle and rear truck regions showed highest temperature and relative humidity, and lower air ventilation. In addition, the superior compartments of the front truck regions presented lower temperature and wind chill, and highest air ventilation. The breast meat samples from animals located at the inferior compartments of the middle and rear truck regions and subjected to with water bath (WiB) treatment presented highest DFD-like and had lowest PSE-like meat incidence than those from animals located at other compartments within the container. Lower incidence of PSE-like meat was observed in birds without water bath (WoB). Conclusions: Assessment on turkeys transported under Brazilian southern winter conditions revealed that breast meat quality can be affected by relative humidity, air ventilation, temperature, and transport under subtropical conditions promoting color abnormalities and the formation of simultaneously PSE-like and DFD-like meat.

Anti Tumoral Properties of Punica granatum (Pomegranate) Seed Extract in Different Human Cancer Cells

  • Seidi, Khaled;Jahanban-Esfahlan, Rana;Abasi, Mozhgan;Abbasi, Mehran Mesgari
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.3
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    • pp.1119-1122
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    • 2016
  • Background: Punica granatum (PG) has been demonstrated to possess antitumor effects on various types of cancer cells. In this study, we determined antiproliferative properties of a seed extract of PG (PSE) from Iran in different human cancer cells. Materials and Methods: A methanolic extract of pomegranate seeds was prepared. Total phenolic content (TPC) and total flavonoid content (TFC) were assessed by colorimetric assays. Antioxidant activity was determined with reference to DPPH radical scavenging activity. The cytotoxicity of different doses of PSE (0, 5, 20, 100, 250, 500, $1000{\mu}g/ml$) was evaluated by MTT assays with A549 (lung non small cell carcinoma), MCF-7 (breast adenocarcinoma), SKOV3 (ovarian cancer cells), and PC-3 (prostate adenocarcinoma) cells. Results: Significant (P<0.01) or very significant (P<0.0001) differences were observed in comparison to negative controls at all tested doses ($5-1000{\mu}g/ml$). In all studied cancer cells, PSE reduced the cell viability to values below 23%, even at the lowest doses. In all cases, IC50 was determined at doses below $5{\mu}g/ml$. In this regard, SKOV3 ovarian cancer cells were the most responsive to antiproliferative effects of PSE with a maximum mean growth inhibition of 86.8% vs. 82.8%, 81.4% and 80.0% in MCF-7, PC-3 and A549 cells, respectively. Conclusions: Low doses of PSE exert potent antiproliferative effects on different human cancer cells SKOV3 ovarian cancer cells as most and A549 cells ar least responsive regarding cytotoxic effects. However, the mechanisms of action need to be addressed.

A Case Report on Post-stroke Epilepsy Treated by Korean Medicine with Uwhangchungsimwon and Jingansikpungtang-gagambang (뇌졸중 후 발생한 뇌전증 환자에 우황청심원과 진간식풍탕가감방을 활용한 한의 치료 증례 보고 1례)

  • Park, Jiwon;Kim, Seo-Hee;Lee, Jieun;Im, Jisung;Lyu, Yeoung-Su;Jo, Eun-Heui
    • Herbal Formula Science
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    • v.28 no.4
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    • pp.451-458
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    • 2020
  • Post-stroke epilepsy (PSE) slows the recovery process and reduces the quality of life of stroke survivors. Antiepileptic drugs are empirically prescribed to prevent PSE. However, the long-term use of antiepileptic drugs increases the risk of atherosclerosis, and up to 25% of patients have drug-resistant epilepsy. Herein, We report a patient with PSE who was treated with Korean medicine including Jingansikpungtang-gagambang and Uwhangchungsimwon. A 51-year-old patient had a past medical history of cerebral infarction that occurred in 2014. His first seizure occurred in January 2020 and he was diagnosed with PSE through a brain magnetic resonance imaging. The patient had a partial seizure with secondary generalization. After the initiation of taking Korean medicine, both the rate of progression to generalized seizures and the frequency of seizures was progressively and significantly reduced. This case report suggests that Korean medicine-based treatment may be safe and effective for PSE.

Successful Treatment with Partial Splenic Embolization in a Case of Post-transplantations Lymphoproliferative Disease with Persistent Hypersplenism (림프세포증식성 질환에서 효과를 보인 부분적 비동맥 색전술 1례)

  • Kim, Mi Jin;Rho, Young Il;Yang, Eun Seok;Moon, Kyung Rye
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.7 no.1
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    • pp.92-97
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    • 2004
  • Posttranplantations lymphoproliferative disease (PTLD) is a common and life-threatening complication for soid organ transplantation associated with the use of chronic immunosuppression and Epstein-Barr virus. There is no standardized treatment algorithm, but numerous management strategies are vaiable. Partial splenic embolization (PSE) had been demonstrated to be an effetive alternatie to splenectomy for patients hypersplenism and portal hypertension. PSE has the advantages of non-invasive intervention and resolution of the complications of hypersplenism. We report the effect of the PSE in a 6-year old male liver transplantation recepient with PTLD who has undergone persistent hypersplenism post-transplant. We reduced immunosuppression agent, started antiviral agent. We started with interferon and IV globulin one month after admission. Hepatosplenomegaly and cervical lymphadenopathy were improved. But fever was not subside. We selectively embolized the lower pole of the spleen to achieve a 50~60% reduction in flow as determined by angiography. After embolization, fever subside and peripheral blood findings were improved. Follow up abdominal CT revealed reduced volume of spleen due to ischemic change and there was no multiple enlarged mesenteric lymphnode compared to preembolization state. We thick that PSE is a safe an effetive treatment modality of PTLD with persistent hypersplenism in patients twho failed to medical treatment.

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Characteristics of Technical Meat Quality Parameters & Carcass Traits between the PSE and Normal Pork Classified by Conductance Threshold (전기전도도 기준에 의한 PSE육과 정상육의 육질 및 도체 특성에 관한 연구)

  • 김동훈;이무하;이제룡;박범영;유영모;이종문;김용곤
    • Food Science of Animal Resources
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    • v.18 no.3
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    • pp.248-254
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    • 1998
  • The two hundreds and twenty two pork carcasses from commercial breed were tested to compare technical quality characteristics and relationships with meat quality parameters between PSE and normal pork classified buy 24hr postmortem conductivity($C_u$). In characteristics of PSE and normal pork by $C_u$ value, highly significant differences were found in NPPC color scale and CIE L*(p<0.001), moderately significant differences in $C_3$ and cooking loss(p<0.01), and significant differences were in $C_6$, CIE b*, WHC and juiciness(p<0.05). In correlation coefficients between $C_u$ and other meat quality determining factors, $C_u$ was poorly related with $pH_1$($R^2$=0.28, p<0.001), CIE a*($R^2$=0.14, p<0.05), b*($R^2$=0.28, p<0.01) and cooking loss($R^2$=0.26, p<0.01). Also, relatively low correlation coefficients were observed in $pH_u$($R^2$=0.32, p<0.001), WHC($R^2$=0.39, p<0.001) and juiciness($R^2$=0.41, p<0.001). Moderately high coefficients were found in NPPC color scale($R^2$=0.59, p<0.001) and CIE L*($R^2$=0.58, p<0.001).

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Characteristics of Technical Pork Quality Profiles Identified by NPPC Scale (NPPC 기준에 의한 돈육의 품질특성 연구)

  • Kim, D.H.;Park, B.Y.;Kim, I.S.;Lee, M.;Kim, Y.K.;Lee, J.M.
    • Journal of Animal Science and Technology
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    • v.45 no.5
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    • pp.835-840
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    • 2003
  • Two hundreds and twenty three pork carcasses of commercial breeds were studied for comparing to technical quality characteristics of pork identified by National Pork Producers Council(NPPC) scale. pH and conductance(C) were taken in 1(pH$_1$, C$_1$), 3(pH$_3$, C$_3$), 6(pH$_6$, C$_6$) and 24hr(pHu, Cu) postmortem on 4~5th thoracic vertebrae. Visual color and CIE value were estimated in longissimus dorsi(LD) muscle in 24hr postmortem on the two sites(4~5th thoracic vertebrae and last vertebrae) using National Pork Producers Council(NPPC) scale and color difference meter. Significant differences were observed in pH$_1$, pHu, Cu, CIE L$^{*}$ value, water holding capacity(WHC) and juiciness at all scales(p〈0.05). But, pH and CIE L$^{*}$value were considerably affected by postmortem time and measuring site. NPPC scale was highly related with CIE L$^{*}$(R$^2$=0.77) and WHC(R$^2$=0.66), and moderately related with C$_{u}$(R$^2$=0.59) and pH$_{u}$(R$^2$=0.54), and poorly related with pH$_3$(R$^2$=0.32), pH$_6$(R$^2$=0.28) and C$_1$~C$_6$(R$^2$=0.03~0.18).

Comparison of Postmortem Meat Quality and Consumer Sensory Characteristic Evaluations, According to Porcine Quality Classification

  • Nam, Yun-Ju;Choi, Young-Min;Jeong, Da-Woon;Kim, Byoung-Chul
    • Food Science and Biotechnology
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    • v.18 no.2
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    • pp.307-311
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    • 2009
  • This study examined variations in postmortem meat quality characteristics and consumer sensory evaluations of different pork quality classes in fresh and cooked meat. Pale, soft, and exudative (PSE) meat had the highest drip loss, lightness, and the lowest $pH_{24\;hr}$ whereas dark, firm, and dry (DFD) meat showed the opposite results. When the fresh meat was evaluated by consumer panelists, they could only distinguish the PSE class of meat and it scored lowest in overall acceptability. However, the panelists did not consider cooked PSE or DFD pork to be unacceptable overall, indicating that consumers cannot distinguish the quality of cooked pork.

Development of PSE portal for Aero Vehicle (비행체 설계를 위한 PSE 포탈 구축)

  • Kim, Ju-Hwan;Lee, Ho-Jun;Lee, Jeong-Ook
    • Proceedings of the Korean Information Science Society Conference
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    • pp.547-552
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    • 2008
  • 여러 분야를 고려해야 하는 항공기나 자동차와 같은 대형기기의 설계에서 순차적 설계는 효과에 비하여 시간과 비용이 비효율적이며, 이러한 비효율성을 해결하기 위해 다분야 최적설계(MDO) 기법이 필요 하게 되었다. 비행체 설계는 시간이 지날수록 그 중요성이 커지고 있고, 설계 시 설계 전 분야를 통합하며 분석 할 수 있는 통합 환경이 요구되고 있다. MDO 기법을 이용한 비행체 설계는 이기종 분산 컴퓨팅 능력을 제공해야하고 각 분야의 데이터 공유를 통한 효율적 관리 및, 설계 최적화 도출을 제공하며 이기종의 환경을 고려해야 하므로, 분산 컴퓨팅 기술을 요구한다. 그리드 환경은 그리드 미들웨어를 중심으로 많은 분산 컴퓨팅 자원을 효율적으로 활용하고 다양한 분야의 문제들을 풀기 위한 고성능 환경을 제공하는 기술이다. 본 논문에서는 각 설계자원을 통합하기 위해 Globus toolkit ver.4(GT4)를 그리드 미들웨어로 사용하였고, 이들을 쉽고 효율적으로 이용하기 위한 PSE포탈을 제시한다.

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